So I can type with only two fingers(both my index fingers) at around 81 words/minute. This is fine for me. But, my mom says I should try learning normal typing and I can type faster. By normal typing, I mean like this:

But when I try typing like that it comes out like this:
thudis ids how i type wenh usign thatn awy(this is how I type when using that way) and it's really slow.
Or I wind up slipping and using just two fingers again.
So, how do I type like a normal person?