Invega stopped my period too, but it came back slowly around 12 months off. I had 6 injections ending in January 2019. I started to feel better around 9 months off, normal at around 18 months off, and fully recovered around 2 years off.
I had anhedonia, suicidal ideation, akathisisa, weight gain, complete sexual dysfunction and numbness in the genitals, loss of cognitive and conversational function, loss of emotion, loss of spiritual function(fun/music/laughter/prayer), bad skin/hair, loss of creativity, and loss of motor skill. I regained all of this slowly between the 9 month and two year mark. I no longer suffer from any side effects of invega.
I have fully recovered. Crimsonthornx seems close to full recovery also. Everything you're feeling is normal during recovery. At three months you will probably still feel like you're on invega. Around month 9 you should start to feel a little like yourself again. Unfortunately I don't think there's anyone here who has tried to recover from Trinza yet so I'm not sure if that changes the timeline. Know that you aren't alone and keep us updated on your progress