Is it possible to masturbate too much? i'm a 52 year old male.

Not really: Masterbation is in part driven by sex drive and having a good sex drive is healthy. Frequent masterbation can affect the quality of sexual relationships, however.

Healthy vs compulsiv: If it's interfering w/relationships &productive pursuits, taking up more &more time &energy, & impacting how u feel abt yrself, it may be addictive sexual behavior. If not, & it is in balance with other things in yr life & u simply feel guilty abt it due to messages u got abt sex being "bad" or "dirty" as a kid, then it may be good to work on accepting yr sexuality. Check sexaa.Org 4 more info.