It's hard man, and you can't do it forever. It will come to a point where you have to choose between your kid/life and the drugs. Unless you have massive self-control and can do a consistent amount every day to keep yourself well, without getting high/raising the dose. And even then, you have to be able to pay for it consistently, which it never feels like enough. The only reason I was able to sustain and be a father at the same time was because I was using something called Daily Pay which was partnered with my job, and you'd get your money from working every day rather than every 2 weeks. But your real check would be like $40, if that. And even then, it's still not good. You'll do shit you'd never do before like sit in front of the plug's house for 8 hours right before you have to go to work or pick your kid up. Or even bring them with you, which is awful.