FIM 2 1/2 week in

Hi guys. Iv just FImmed my plant at 2 weeks and 2 days in after sprout. She has 2 sets of main leaves and the 3rd set she should be developing later today or tommorow. The 3rd set of leaves have 5 fingers so i thought id FIM the 4th set that were JUST visible. My plan was to top it but its too small so i didnt do that. What im wondering is, will this cause major problems in the long run? reason i ask is because the first 2 weeks she was under 18/6 i flicked over to 12/12 about 3 light periods ago. And since shes not mature enough to flower i figured shed stay in veg for a bit? So this shouldnt cause too much damage right? Its kinda a 12/12 from seed thing however i let veg for two weeks for extra yeild later on. Any help appreciated thanks

pics be up soon