I started my roll of by playing freerolls. The difference was I wasn't trying to build a bankroll , I was just having fun in the evenings and got better and developed the ability to regularly cash in them. Over time they add up.
Would I recommend it .? hmmmm .....hell no .....I learnt how to beat the clueless , but in doing so I picked up soooo many misconceptions and bad habits that I had to rebuild my game to beat the micros , and am now rebuilding it again to try and iron out the shit that won't let me progress. Its work in progress and who knows if it will work or not. But its part of the fascinatio with poker .
If you can't deposit check out the no deposit options , FTR had some free bankroll offers I think , but you end up forgoing rakeback and first deposit bonuses at the sites you use it on .