What do you class as a high level?

Im on level 16 and have been promoted and in the top 4 every season (only out of the top 2 once), without ever buying tokens.

Not sure how many levels there is, but so far I've not come across any major problems. There are about 6 or 7 teams I recognise from my level in my and other leauges at this level who have strong, non token buying, squads who also seem to be able to get promoted each season.