First time really growing

So about 5 weeks ago I received my seeds and my cash crop 4. Everything is going great except I’m about to run out of room. My plants are just about to the lights and I’m worried that I could run into issues. According to the info from the seed they should flower in about 65 days. If that’s the case I still have about 3 weeks or so left till I get to that point. Is there anything I can do to prune the plans to back or keep them from touching the CFL bulbs?

Yeah you can try tying down branches , but the CFL really want burn them as bad as a HPS or strong Led would , so they can get pretty close to CFL or T-5 bulbs and not burn hardly .