Ive played on the new pokerstars play money app and in most of the heads up games, you have players that are just constantly shoving. The best way would be to actually play with real money on sites. I would probably play against the bot and some play money. I dont think these are good practices tho. Against the bot, you can try to figure out the correct plays but everyone plays differently. Watching videos will be the most helpful until you start to play real money on poker sites.