If at first you don't succeed, try a different method. The days of individually-cut pieces from card-board templates are long gone and while that method still works, there are many other ways (and tools) to make the patchwork assembly easier. Just like anything else, if you want to get good at it, keep practicing. If you give up, you'll never master the process. Only you can say how important that is to you.
For me, I know there are certain patterns and color/fabric lines that I simply do not like. I will not work with them (unless in a swap) but other things that don't work, I will stick with - even if I take a break for a while.
...giving up quilting? Only if I lose my sight and use of my hands. Perish the thought.