"Practising with play money chips" is the horrible advice that will most likely backfire. The only use of play money tables is get comfortable with the interface and the general rules. Other than that, its a waste of time and an actual way to become worse at poker.
I would second that as well. Instead of practicing with free play chips its better to just play very low stakes like 0.01/0.02. You don't need a high bankroll for that. But it would not be an efficient way to improve your tournament game. Games which are of low buyins < 3$ usually won't get you good tournament experience. You will likely be playing against people who would be playing for just fun and would see a similar playing style like playing chips.