I do not believe it is too difficult to tie your own tzitzit. Most of the methods are relatively simple, EXCEPT for the Rambam Teimani method which requires quite a bit of effort and practice. In any case, you have to be willing to spend some time learning. Your goal should be to learn how to tie – and NOT to get a begged completed. If your goal is to have a begged ready to wear, you will be too impatient with yourself.