SkinwalkerI feel ya when it comes to your experience with depression. I like how you describe it as a cloud, like it comes and goes but it always comes back. It's kinda like a heavy weight on your shoulders, right? It's a terrible feeling knowing that you might be happy and positive one day, but that darkness always comes back to bite you, especially at your worst moments. You can always come to this site and talk to people (like how you posted this thread!) and it's really great that you're getting help through therapy! Heaven knows it took me years to finally build up the courage and ask for help. Therapy can be a strong sense of support for people, so I hope it works out well with you and that you can find some peace and figure out how to control your thoughts.
I understand your hesitation to take medicine because I'm like that, too -- worried that I might get addicted to anti-depressive meds and pills that'll help my anxiety. Currently not on meds either, but one thing that my old therapist, a guidance counselor, and trusted old teacher all told me is that sometimes we have to take the medicine. They explained that sometimes what's causing all this is a chemical imbalance in our bodies, especially our brains, and seeing a psychiatrist/psychologist and getting that formally medically diagnosed helps to understand if we need meds or not. Sometimes, even if we don't want to we have to take medicine because it'll help us for the better. I'm sure you'll be closely monitored by your doctor/psychiatrist (by that, I mean you'll probably have to check-in with them a lot) and they'll evaluate how you're doing.
If you ever feel like doing something drastic though, you've got us.
And you can call here if you feel like you might do something (wasn't sure what country you're from, so this is a plethora of centers)
Don't be afraid to post, because I guarantee you someone will be online and listening!