Like above poster said, you need to be willing to deal with all those negatives should they arise again. If you decide to do it again, make sure you're getting high quality, tested stuff, make sure you only dose 1-2 mg/kg, with no more than one 0.5-1 mg/kg re-dose, and try pre- and post-loading with the supplements listed on RollSafe.org. Eat a healthy diet of fruit/veg/wholegrains/omega-3 for a while before and after, and try and be more active in the same period. Do it with close friends somewhere that will be conducive to having a glowing experience, this could still be a rave/club, but not just some retarded event where people are getting munted, doing grams of MD, generally being fuckups, just something thats full of other nice people and provides a cool and cultured environment to have a nice time. After that just give it a break for 3 months at least before considering it again. You should be ok if you stick to that kind of plan.
I think the magic mostly returns after a break of 6 months or longer, depending how heavily it was abused, so seeing as it's been almost 9 for you, you should have the ability for a great experience in there (it's just set/setting dependent on whether you'll get one, IME).