also what are some things that i need to keep in mind that most people mess up on? i would like to fix the problems before bad habits are formed
I'll give it a whirl. I threw sidearmed when I first started, and thought I was doing pretty well. Then I played a tourney at my local course and got schooled, that experience made me want to be at least passable with my backhand. Then I got forearm soreness from all my forehands, this accelerated my BH learning.
It didn't take long however before I became "normal" and learned that BH is a better and more versatile throw. I still throw sidearm for many holes, and am glad I am able to do that, but BH proficiency is the stragihtforward way to get good at this game.
Some observations from my own process:
The biggest difference is that BHs hyzer more than sidearm. This means that it is easy to throw a straight sidearm with an overstable disc and think that you are screwing up if the same disc doesn't go straight with a backhand.
Having one's wrist so that the nose is down on a driver is one of the biggest adjustments for learning backhand. This didn't feel natural for me at first, so I would throw a lot of throws that climbed slowly upwards until they got to about 20 feet it the air and then went hard left. Midranges and old school drivers are more forgiving of course for this nose angle thing, as you can read in all Blake's articles.
The run-up and the X step are more for timing than for power. Though they do add some power, it's not worth complicating your learning process by focusing on this footwork aspect of throwing. This got in my way for awhile, trying to emulate others' footwork rather then their follow through. Think of the velocity a pitcher gets from the stretch or an outfieder camping under a flyball and then exploding home with the throw. Or think of a batter exploding with the pop of the hips.
Leaning forward and following through is really important.
There is a lot more, but read the articles on this site and watch the videos and it comes fairly easily. It only took about three weeks to go from 200' BH to 275', after that came a lot of 310' throws in the wrong direction, and then eventually accuracy and distance get more consistant and it really matters what disc I choose for what hole.
For disc selection, use what you have, and when you want to buy another disc, buy a dx cheetah or dx gazelle or any of the learning discs Blake recommends and one can read about in all the posts on this site.
But if you can learn to put that roc where you want it, and can feel comfortable throwing it straight and having to curve when you want, and can drive full power with it, then you "have" the backhand.