I was basically goint to say what Natalia Pogonina. If you are going to do something like that, do it because you like chess, not because you want to become a national master or something.
Also, maybe it's a good idea that when you do tactics trainer, to try to solve the puzzles faster. Tactics trainer is the only concrete thing I do to 'train' my chess. For me, it really is a tool to burn in patterns. It doesn't matter if you miss a few tactics as long as you learn the patterns. Later on, you'll use those patterns to deliver other threats, so your opponent might for example be able to block a mate in two, but will have to leave a piece hanging in the process.
It would also be wise to play long otb games which is something that doesn't particularly appeal to me.
Oh, and get a paid chess.com membership, there's so much material on here, it will make you sick
Scottrf, I think you are right that I should set some intermediary goals. That would be a great way to keep the frustration at bay, as you say. I completely agree.