As a freeloader who has been building up a FT squad to win quads season on season, my advice is:

Do not start buying tokens package until one has a better understanding of at least some formations and player positions work, better idea of how worthwhile of an addition of certain * players to your team (hence if the T-price is worth it), and a clear picture of how your squad could look like in 2-3 seasons with the help of those additional tokens.

Maybe experience a full season with CL, Cup and league first and then decide in season 3 if you want to go for the token package and/or premium sponsor, as by then you would have a better picture in how good you want your first teamers to be along with the competent subs, hence the kind of addition you may like to add with token buy. More likely you would enjoy this game a lot more in the long run this way than adding a few high * players into the team and got beaten by a well-trained first-11.