I have anxiety and a panic disorder and always wanted to use meditation as many people say it works, but the few times I have tried it, I went into a panic attack. I think maybe I was just thinking too much on my heartbeat and my internal thoughts or maybe I was in a bad state. Its been a while since that and I think I should try it again. Im trying to become a healthier person, so im going to book mark this and come back to it later in the week when I get some free time to try it out. I know theres also a few youtube channels dedicated to helping beginners meditate.
Sit comfortably, maybe put on some music, and Try focusing on your breath and breathing constantly. When you focus strongly on your breath, you keep your mind busy and don't think about other stuff or stress yourself. I think this would be better for you than thinking of nothing.
Anyway, meditation is a great help for anxiety so you should definitely give it another try. But don't force yourself. Just do it when you feel like it! Let me know if it worked, I'll be very interested to know!
I also have a social anxiety and have suffered from depression for most of my 41 years, I've tried many drugs and they all come with there own problems, mainly withdrawal.
I've been using the Headspace app for a little while now and I must say it has helped me start to understand I am capable of controlling my thoughts and feelings, it just takes some hard work just like everything else.
You can also try starting with some guided meditations. Sometimes having something to focus on (i.e. someone else's words) can be hugely helpful. Look into Loving Kindness Meditation. Or perhaps Yoga Nidra. There are lots of options out there (check Spotify, YouTube, etc.), you just have to find the one that works best for you!