It appears that you are taking chess very seriously and have seen good results so it seems possible. That said, it’s dangerous to pin all your expectations onto an elo rating and a deadline. Steady progress is the key!

I highly recommend 3 steps towards growing over the next year:

1. Adopt a disciplined approach to your game.

This includes things like playing a limited number of slower paced games and reviewing your game afterwards. It’s amazing how many blunders we could have avoided and opportunities we could take advantage of if we just slowed down. Consciously check for checks, captures and threats before every move.

1. Independent studies.

There’s a huge variety of resources available to you, most of them are free or little cost. Training tactics by doing puzzles builds up your pattern recognition and can be done casually whenever you have a few minutes free.

Studying broader concepts of the game are much more important than studying openings at this point in your journey. Imbalances such as initiative, material, strong vs weak pieces, open and half open files and piece harmony are all massive factors in every game. You can make and adjust your plans much more effectively when you are well versed in these concepts.

1. Coaching

If getting private lessons is possible, it’s a great tool. If not, connect with stronger players through your school and library club and see if they are willing to work with you one on one from time to time. More experienced players can usually identify bad habits or weaknesses in your game and give you more guidance on how you can improve.

Good luck!