His delivery is obviously awful but I will reaffirm that he is basically right;
A lot of people blame tf2 / video games for their depression but for me, the height of my depression was definitely after I quit tf2 in s21. I'd gone from an asocial loner with a hobby to an asocial loner with no hobbies, I'd thought quitting tf2 would fix all my issues but in reality, it amplified them. I spent the whole year after that neglecting my studies, my friends, and my own personal health. I eventually ended up coming back to tf2 (obviously) and honestly I'd say it has a positive impact on my mental health, for a few hours a night I get to hang out with some chill guys and play my favorite game in a good environment.
What actually ""ended"" my depression (I haven't felt seriously depressed for over a year now) was a drastic change in living situations, I moved to a new city, made a whole new circle of friends, and was immensely busy with first-year engineering work at university. It was basically a soft reset on my life up to that point, I started working out, taking my studies very seriously, started acting more extroverted, and actively trying to make friends with strangers, things that were basically unthinkable to me in high school.
Earlier in the thread, you said you had agoraphobia, so obviously what worked for me won't work for you, but as someone else who has dealt with serious depressive episodes the best advice I can give is to change things up, get out of your rut and do things you've never done before, go places you've never been, whatever or wherever that might be. I understand if you brush this off though, I heard this exact same advice from others when I was dealing with depressive episodes; it took the actual material conditions of my life forcing me to change before I actually did anything, making me very lucky.