hello, a question please

i've been trying to achieve the 90 days no pmo for a long time and been fapping since age 12... 22 now...
thank goodness im over 40 days no p, however i still struggle with mo, but not as frequantly as i used to before taking this task on myself, even that 1 relapse every 20 or so days is enough to get me drowning emotionally, having bad days and getting my social anxiety back, poorer self confidence...
so i have a question, if i will be able to to stop masturbating and get a girlfriend to do it with, will it still be negatively towards these things i mentioned like social anxiety , poor self confidence, etc?
the bad thing is the act of masturbating alone? the chemicals relased in the brain while in the time of relapse?
because they are relased even with a partner, does it work differently? i would love having some information about it

 

Would really love some advice, need help