Is masturbating good or bad for your mood?

So a bit about me. I am quite neurotic and my mood ranges from completely depressed to feeling ok/normal. I usually masturbate 2–4 times a day (mostly once when I wake and sleep in order to wake/fall asleep) as well at other times to relieve stress. I am wondering whether this amount is dangerous for my mood (hormones and stuff like that) and want to know if you have any anecdotal or other evidence for me to look into.

At the moment I plan to give up, but will probably find it really hard (no pun intended).