Should I start playing chess seriously?

Some tips
- play classical time control also >30 minutes (maybe with Tae7) and analyze together afterwards
- join a local chess club when corona is over
- find some instructive youtube channels like agadmator, Gothamchess

GL and have fun

The rating is pretty good for 2 months @M7MDAW but there aren't many games on your account. If you want to improve a lot then you need to play a lot (and look at your blunders after the game ends).

Also you did 186 tactics yesterday with about half correct. That means you're likely not doing them properly. The right way to do it is to not give your answer until you've calculated every variation to the end. I think you might just be going by intuition at the moment instead of calculating. Quality > quantity ig

Short answer: Yes

@david252525 Yes, my tactics aren't good , I will just continue on doing more tactics and trying to learn from them.