I'd like to get some fingerings, please.
I'm working on invention 13 and I know I'm playing it wrong. I am frustrated because I want to play well, but I don't know how. I'll never get it right by guessing

I'm looking for an online resource, rather than an expensive book or lessons which I cannot afford. I don't have money.
I'd like to learn the fingerings for a few pieces and then study about how to make decisions of which fingers to use.
I'm working on Hanon exercises and an exercise of my own divise.
My exercise is playing all inversions of triads up and down (e.g. C, C6 (E, G, C), C 4/2 (G, C, E), C, C6, then D-, then E-, et c.). This is performed with accuracy and fluidity at 40bpm.