how do i improve in chess?

I  am 11 have been playing for  around 4 months now and i haven't made lots of improvement even though i have been playing chess more recently and getting better even though i am quite bad , and my only teacher, my grandfather died on the 3rd and i would like to have some tips on mastering endgames and opening 

thank you 

a blog is here for you .

oh sorry

you can do lots of puzzles

and try to remember the patern

Master one opening for white as a beginner I recommend the Italian and then go from there.

join a club like maybe the one i'm in (Magnus Chess Academy)

https://www.youtube.com/watch?v=nXyJdetptXg

It's 35 essential chess principles. Some are more advanced than others, but they're all good.

you want to learn, so learn backwards first. This will show you route in how to get you there. confusing isn't it? Sirach

learn the endgames.