Fill your time bud. Best advice I can give. Literally fill your time jam packed so you never have time alone and starting drifting into bad thoughts. Don’t have enough hobbies or things to do? Take up new hobbies! There’s millions of things out there to try. Never say “I can’t”, anyone can. Everything is a choice.
Alongside this, make sure you stay fit with exercise – I know walks have already been mentioned. Eat healthily also. A healthy diet really helps for a healthy mind.
If you struggle sleeping, try meditation techniques. Plenty of apps out there that can help with this sort of thing if you’re not sure where to look.
And finally, if you ever want a chat, just ask. No one is alone when it comes to depression, it seems all too common these days, so we need to work together!
All the best,
Jack