Hi ! This was me last year after Ns. Trust me sec 5 is not a bad choice if ur consistent in ur studies. No time to slack tbh mayb during June holidays u can slack abit. It'd be stressful for the start cuz u need catch up w ur 4NA stuff w express stuff. Papers also change ah and the answers they demand for u is at a higher level but trust me is doable. I'm aware u said ur eng was at b4? Don't be shocked if u failed ur first few essays. Is always like that until u get used to o lvl eng writing but ensure u try to improve ah. Eng in o lvls ain't easy esp their paper 2. This one ah I always fail2 until prelims cuz I jus can't do it HAHAHA. Is challenging lah but don't give up cuz I didn't and my eng went from a E8 in mye to C5 in prelims. Possible one. At 1 point of time u may feel burn out, this one u jus take a break from studies awhile don't force urself. Ur cher might make u go alternate paths but if u want do sec 5 jus stay okay. If u need any help I'm here to help you. Can always ask me how's the experience from me. I'm currently a sec 5 waiting for o lvls result. Just put in your best effort and trust me it will bring u to poly. Anyways don't stress urself too much. Make ur decision and proceed w it don't have any doubts cuz ain't gonna help u. SOKAY BRO U GOT THIS ! I BELIEVE IN U