I have experienced this exact thing...it was so intense that I actually became delusional, and wound up in a couple psych wards for a few days at a time back in 2011. You seem to be doing a little better in comparison, and asking for help is a good thing.

Luckily, I know the way to solve this problem!

What really helped me get past this was Dr. Amit Sood's "Attention Interpretation Therapy"...specifically, the attention training aspect of it. I'll explain how to do it in this post, but will give some additional info, too...   So...the Buddhists have a practice that's basically the same called shamatha, or calm abiding meditation. They would say to use either a "pure" or "impure" "external support". An external support means something that you pay attention to outside of yourself, like a picture for instance...that's in contrast to paying attention to something inside of yourself. "Pure" means a symbol of enlightenment, such as an image of a bodhisattva, and "impure" means anything else, such as an image of a tree.   So for attention training, you'll want to use an "impure external support". You basically just want any object to turn your attention toward. I prefer to just call it the "object of meditation". It sounds less judgmental, and in actuality it works better. As a side note, I think any object that trains the attention is "pure" automatically.

What Dr. Sood points out in his books is that it's easy for the mind to get distracted when it's only paying attention to one thing...so he recommends to look for "novelty" in the object of meditation. For instance, you can notice one thing that's new which you didn't see in it before.

Because that's the case, I liked to use detailed objects...like a bush where there are many different leaves blowing in the breeze, or like a single leaf from a tree held up close, or an orange, or a picture of a mountain range with a lot of details you can focus on.

 
  So for the meditation, you spend 5-10 minutes gazing gently at the object of meditation, noticing new things about it. The point is not to go crazy trying to find new aspects of it to look at...the point is simply that your attention is being directed toward the object. It's simply training the attention to go where you tell it to.

In training the attention, the higher brain centers are activated and as a result the mind basically self heals. Currently, the mind is a little bit fractured in that it's not filtering out useless information, like random people's conversations, or the energies around advertisements or social media. Your mind is queuing into things that it doesn't really need to, and perhaps it will even start doing what mine did, which was attempt to create meaning from the various "synchronicities" (aka, coincidences) that can happen...connecting the dots where there is in fact zero actual connection. When it does that, I call it "magical thinking" and it's something which ends up being diagnosed as "delusion".

Besides meditation, a big part of healing the mind is to recognize any delusions and forget about them. Such storylines can keep one wrapped up in an erratic state of being, which prolongs the healing of the mind. Best to have no mind, then the brain has a chance to heal itself...versus the mind being wrapped up in any kind of drama or intense emotional experience.

So what we have now: meditate as described above for 5-10 minutes at a time (could be twice a day, could be more...with this type of meditation, it's not bad to do more). Secondly, try to recognize and forget about any delusions. Next, you should take care of your lifestyle...

The body and mind have needs in order to self heal. They need to sleep at night, and they need to have nutrition. Sleeping at night should start before midnight, and last for 8 hours. Nutrition should be 3 meals a day, breakfast taking place within the first hour of waking up...and each meal should have protein. Meat is good but not in excess.

Skipping meals or having ones without protein is a sure fire way to have the body and mind start malfunctioning. Same with going to bed way past midnight, like let's say at 3 am...if you do that you're going to be lacking in some important foundations of health the following day. For healing the mind, the system needs to be working optimally!

There should also be some exercise and enjoyment...like the equivalent of 45 minutes to an hour of walking outdoors in a day. Something that is kind of strange which helped me during the roughest time was watching the tv show Psych...it worked because it was lighthearted and made me laugh sometimes, and it wasn't something that my mind tried to read too much into. I could also use it as a time to pay attention to novelty, basically meditating while just relaxing watching tv. Rest and relaxation are as important, if not more so, than getting adequate movement.

So yeah, those are the keys to healing the mind, in order of importance: The right kind of meditation. Dropping delusions and having "no mind". Good sleep. Proper nutrition. Rest and relaxation. Adequate movement. Oh yeah, and a final note about meditation... Focusing is not the goal for training the attention. We don't want to cultivate "hypervigilance". The goal is to release the mind by bringing attention back to the object of meditation. It's not to become more intense in our control, but actually to become more freeflowing in our demeanor...while also having the filter which naturally blocks out information that isn't relevant.

The meditation works, and doesn't require anything else other than paying attention to the object of meditation...the results will come naturally and don't require any effort other than in doing that.

Best of luck and please report back if the problem resolves.