Welcome to the forum. Drug side effect is a known cause of T. If your T stays, and if you feel anxious a lot, then perhaps try these:
1) Keep posting and ranting on the forum. This will give you support and allow you to let out the burden of dealing with T all by yourself. It helps to know that people here understand you and that you are never alone here.
2) Relieving stress and anxiety will help reduce your T or that you can cope better. Slowly you can get out of the fight or flight mode of the limbic nerves. So do your best to stay calm & positive. If you need it, some natural herbal supplements can help you stay calm and help you sleep, as Lemon Balm, Valerian, Hops, Catnips, Passion Flower, Chamomile, Lavender, Kava, Melatonin etc. You can google search or check Amazon.com for each of them to know how people review these products, and see if you can take them as a supplement. Check out this site on using natural herbs for helping to sleep or to calm the nerves.
http://www.christopherhobbs.com/library/articles-on-herbs-and-health/herbs-and-natural-remedies-for-insomnia/
3) Try some relaxing exercises such as short hikes or leisure walks, whatever pleases you.
4) Get masking going asap if you haven't yet. Masking can reduce your anxiety about the T sound and will help a lot at bed time if you have trouble sleeping with T. Here are some masking suggestions. Take care. God bless.
a) Mask at bed time so you can sleep better. Find whatever sounds/music that are soothing to you. You can use a sound machine or sound pillow for this, or a computer with speakers.
b) If you need masking on the go, try load an ipod with nature sounds or music using itune. If you have a smart phone, you can download free APPs for soothing or T-masking sounds.
c) If you have computer and speakers, you can try these excellent masking sounds too:
TT's audio player:
https://www.tinnitustalk.com/audioplayer/
or this online sound library, particularly the self-mix nature sounds:
http://mynoise.net/
or download free sound generator 'aire freshener':
http://www.peterhirschberg.com/mysoftware.html
or search youtube with words like 'tinnitus masking sounds', 'white noise', 'rain sound' etc.