TYPIMNG ADVICE
Make sure index fingers arent doing too much load

learn finger independence, try to maximize every finger, good for blood flow and good habits

trying typing fast, even if you have to slow down. finding your flow, and being able to speed up on sections you are comfortable with while taking your time to build up good keystroke habits is important.

Combo those strokes and type some words instead of doing it letter by letter.

Enjoy typing, and enjoy every challenge, it builds good memory, and reinforces experiences. You don't need to grind hardcore to be a fast typist, you just need to practice typing fast in increments and break bad habits.
You can improve your typing speed without any typing test sites as long as you are always mindful of your form, and it is much easier to isolate habits this way.

There are perhaps a tiny handful of people that actually converse and think at 200 wpm, and I am one of the only few that do it. If you don't apply your typing skills in meaningful matters outside of type racing, then you're not making the most of your skills.

Burst in sections, until you want to burst a whole race. Be mindful.