Here's the best cycle for you (taken from Cooljames at Outlaw), "i dont usually give out my secrets, but ill do it this time only.
8 hrs of sleep x 7 days a week
food every 3 hrs x 7 days a week
1g of protein x LBM x 7 days a week
gym 3-4 x per week
repeat this cycle for about 3-5 years, no need to come off, and you wont need a post cycle therapy, as you wont get any hormonal shut down."
I personally recommend PCT every 9-12 weeks for 1 week. I would do that cycle for 9-12 weeks take a 1 week PCT (Rest from everything) and repeat.
Listen, I'm not trying to be a dick or be belittling, just being honest. Once you've gotten past your "plateau" and gained some more then let's consider another step - it sounds like you're wanting an easy way, I could be wrong, and you can let me know that, what's your height?
I'd never recommend a cycle to someone with only 15 months of training without know much more about their stats, age, training regime and experience, actually goals both short term and long-term, etc. I'm also not trying to be one of those holier than thou "give me your stats" guy's either, but in your case and not having anything to work with,it's needed.
If you've already got Dbol, then we know that you'll use it - LOL. So tell us much more and maybe we can at least steer you in the right direction, and remember that cycle I listed at the beginning is the best one and should always be a base.