If you really have bitten the bug, you will get to it... if not...
As to the age, well I know quite a few who made it even approaching or above 40, so why not you?
Also plenty of ex cabin crew have made it to the FDK, at least they know in what direction their career will take'em.
Flying is by far the nicest way around to spend your time at work, though vastly underpaid in most airlines
All the best