>>5164
From mine and many others experience, all of that can be solved, or at the very least greatly reduced with consistent mediation and relaxation practice. All you need is a minimum of 3 minutes out of your day, and for as many days a week as you're comfortable with doing, but keep in mind that it is impossible to do too much.
Take the time to sit down or lie down, whichever you're more comfortable with, let your eyes gently close themselves, and begin focusing on your breathing. Breath in and out through your nose, making sure it goes deep into your lungs; your gut should rise and fall with each breath, not your chest. Your mind will undoubtedly wander, which is completely normal, but all you have to do is acknowledge those thoughts, then go back to focusing on your breathing.
If you need help with getting started, try one of the short meditations on http://app.stopbreathethink.org/ , or follow a guided meditation video on youtube, they will walk you through the steps in more detail than I have explained here.
I've found a lot of help reducing my overall anxiety levels and also getting to sleep using these methods. From the way you've described your situation and how much it relates to my former situation, I think it will work for you too, if you just give it a fair shot.
>>5170
I really recommend against waiting for it to pass, as things like this don't solve themselves. You have to take some initiative and be proactive in order to overcome it, otherwise it will just get worse and worse until it completely takes over your life. That's not to say it's impossible to fix things once you get to that point, but it will take more work.
Think of those worries as weeds in a beautiful garden. If they are left unattended, they will grow and grow until they smother everything in sight, and it's going to be one hell of a job to get rid of it all. However, if you act sooner and more often, de-weeding will always be a relatively minor task, and perhaps even a little relaxing too.