Help, I think

I have been going through depression for a very long time. It's been about 15 years maybe more but that's kinda when I can start see it happening. After years of marriage, she left and sent me even farther into depression. I had very low points and and have come back up but it's been worse than a rollercoaster for quite a bit of it. I have fought tooth and nail to get to be better. I have put band-aids on some parts of my life but, I need to do more than that. I'm trying to get into routines but I find that I get stuck in my room more and more and it's getting depressing. I don't really talk to anyone. I feel like a burden all the time to people so I don't engage with people about my feelings. I have before and I lost a lot of friends (during my divorce) so I just stop about my feelings. I just don't know how to get into and stay in a routine that helps with day to day life. Any suggestions??