Putting
Putting has always come easy for me, it may have something to do with playing ball golf for so many years, but it is never an issue and I do not even practice.
Disc golf putting is hard if your bodys momentum is not towards the basket, I used to wonder how guys could hit 50 foot putts, but after realizing that I was sort of pulling back at release, I figured out how important forward momentum is, and once you get it figured out, it only involves very subtle body movement to generate the overall forward momentum. To start down this path, on each putt, as you release the disc, keep walking towards the basket, also make sure you are not standing up straight, you arm does not want to lift up, there is a lot of resistance to that, feel your shoulder muscles as you try to lift your arm up while standing up, then lean forward and notice how your arm moves more freely as a pendulum when you lean forward as compared to standing straight up, so liberate the arm by leaning forward, and as you putt towards the basket, keep walking, do not stop, and you will get a sense of how important it is to have your overall body momentum in the direction of the putt.
Once you get that stuff going, you will be able to project the putter, so distance will not be the issue, accuracy will be, so you can try to pick a spot, but I pick a path, I see a path from where I release the disc all the way into the basket, so I putt along a path thru the air to the chains.
I really do not think throwing a million putts is the answer, I think having a few reference points on mechanics, and remembering them, should keep you from missing too many putts.
We all miss one or two a round, leave room for that, and relax, just chill and do not get too concerned about what may or may not happen, the relaxed body and mind will flow those putts into the chains. Disc golf is fun, it is a great break from work and home, you get outside, have fun, flow some putts into the chains.