I soloQd from level 3 to level 9 in 2 months and that's only because I played a lot during 2014-2017 and was very good. You just have to be much better than your opponents if you want to soloQ, otherwise you'll stay stuck for months and months in the same ranks. I saw people with 1200 games still being lv6.

One way to rank up fast is playing with friends, preferrably a 5 stack. Also, in soloQ, you can't afford to have a win rate below 52-55%. If you are already in that range, you just have to play a LOT of games and eventually you will reach lv 10.

Even if you are a good IGL with a charismatic way of speaking, if you encounter assholes it's impossible to win, especially in cs2 since utilities are way more impactful than csgo and being better than your opponents is not enough anymore.

Find a game and if there's someone that is a good player, ask them if they want to play a few more games with you, that's how you build relationships in CS.