in need of coach
I don't think you need a coach honestly to get to 2000. Two months ago I was a 1600 and now I'm an 1800. You just need to work hard, analyse lots of games and learn from the mistakes in your own games. I know it's difficult at the moment because there's a lockdown but you can play games online and then analyse them alongside a computer engine to highlight where you went wrong
This probably isn't the only way to do it, but the way I do it is by playing 15/10 games and then going through them move by move on a chessboard, spending maybe 45 minutes on each game analysis in total. You can either do that first then go through it again with the computer, or just go through it once with the computer, looking up from the board every now and then to compare what you think about the position with what the computer is recommending at each point. You gain much more benefit doing it this way because then when you see similar patterns in future games, you can remember what you analysed before and then apply them to your games. Just doing a quick analysis in my experience helps you work out blunders and mistakes you made, but doesn't really help you pick up the finer points of strategy.
The higher up you go, of course, the harder it is to improve, because you make fewer and fewer mistakes on average! That's why it's important to analyse games thoroughly. However, I wouldn't expect your grade to go up smoothly and quickly, because it will fluctuate depending on your performance on any particular day. You might find it helps to set yourself moderate targets- 1700 by the end of March, for example? Anyway, I hope this helps!
I have not played in years and I was a beginner to possibly intermediate...I say beginner because I do not know any existing openings or patented kill moves for checkmate...I can only think one move ahead. What do you think?
I would say you should focus on the basics. Always check to see if your opponent has left any pieces unguarded, or if any tactics are possible, such as knight forks. Likewise, you should make sure your opponent can't do the same to you. If you can reliably not make any mistakes in a game, your rating will massively improve