Never had Paxil.
But i can tell you that if you have ADD/ADHD and start with medication it can be really good. My experience was great.. and sad at the same time. I got diagnosed very late (as an adult mid 20s) and when i took MPH the first time, it was like i could focus on things for the first time in my life, almost made me cry - no troll.
Its like all of a sudden you can filter all the shit that comes in unfiltered and overwhelming sometimes.
And who knows, maybe you dont even need a high dose at the beginning, also you can take mph when you need it. it doesnt have to be every day, i for example dont take them on weekends or when i have off, only when i know i have to go somewhere with a lot of people, so i can filter that shit. Otherwise i just take one before work.. also it helps to kill the bad-thought-spiral i used to have in the morning.
I wish you all the best m8.