Should i go cold turkey at all of my attentions or should i get rid of them one by one?

So i have four addictions: Porn Masturbation Youtube Instagram

I am currently handling porn. I am 2 weeks in and have relapsed 2-3 days. I plan on doing a 66 day No porn and move on to masturbation then instagram and youtube.

Is it fine or should i get rid of them all at once?