I've started playing in 2017 played a lot for 3 years with a team, almost got to diamond (old diamond which was at 4400mmr in Ranked 1.0). We played lots of tournaments, ESLs (never won anything though).
Now I started playing again since Ranked 3.0 lauched, but playing solo Q is absolutely horrible.
After I stopped playing R6S, I played Breachers (a game similar to R6S and CS2) for 2 years, winning the European BCL tournament with a team prize pool of €2,500. So I've always kept my game sense sharp.
I want to find even a team to play with and reach high levels, play ESL tournaments and who knows, maybe reach SI.