You must play a lot of friendlies.
Find friends from wherever you can and organize many games.
Keep some useless players (get some 30 y.o. 60% q with 1 token from the market) , let them with 0% condition, start a friendly game with your normal team (cause you must have at least 15% condition) and asap sub them with the oldies .

Must find the right price.
Tickets from friendlies have lower price than others.
Start with 30$ (depends how successfully your team is doing so to attract the fans)