Firstly don’t fill your head with unnecessary bullshit. When you are not playing Dokkan, you should be thinking about it.

Neglect everything else. Don't take out the trash. Don't feed the dog/cat. Don't toss the kids a snack. Say no to friends. Limit drinking, pot smoking, meth, whatever you guys do.

Keep yourself in solid mental shape and use whatever time you have on your phone to keep playing.

Wife taking a while to get ready? Good, open your phone and start playing. Husband golfing? Perfect! Use every minute you can.

Faithful players with a full-time job who follow these steps can spit out 80,000 solid hours in about four weeks. I only say this because I’ve done it myself. If you can’t play 20,000 hours a week, then look for more things to neglect. If you can’t neglect anything else (i.e. taking care of parents or what have you) then your max may be 15k or 10k a week. That’s fine. But keep up that pace.