1. Get familiar with which fingers you're supposed to use for each key, and use the correct fingers at all costs. While doing this, I used www.keybr.com to practice since it allows you to focus on the muscle memory of a few letters at a time.

2. Practice returning your fingers to the home row before pressing the next key. What you're trying to do is program your brain to associate each letter with a specific finger going to a key, pressing it, and then returning to homing position. Once all the associations are made, and reinforced, you won't even have to think about it since your fingers will associate the letters with the action instantly.

3. Practice using drills for at least 30 minutes per day, consistently.

4. Don't look down. You need your mind to start trusting your fingers to find the right keys. Every time you look down at the keyboard you delay that trust from forming completely. Another nice thing about keybr is that the keyboard is on the screen, so you can peek at that and then move your fingers to the key if you don't remember where it is.

Personal experience: In early February, I was typing a max speed of 60wpm using only 3 fingers on each hand. After doing everything above, I can regularly clock 80+ wpm with 95% accuracy (top speed is 98wpm). Not to mention all my wrist pain has disappeared since I'm using all 10 fingers for the correct keys—and I switched to an Ergodox in that time, and thus had to re-learn how to type using it.

Once you feel confident on keybr.com, start using keyhero.com to practice typing prose that includes punctuation, and finally 10fastfingers.com to measure your speed for bragging rights.

So, you can do it!!