should i try now or next year?

hey yall, few years ago (2 years i guess?) i passed topik at level 5 , but havent used korean since (except for watching dramas with korean subtitkes, so reading and listening are not as rusty as writing). only 2 months ago i picked it up again but i feel like im down to 3급-4급 and theres a lot of reviewing to do. I can sign up for the exam in the next 5 days, but i feel like seeing lower score than previous time will emotionally destroy me lol. Should i do it and speedrun (aiming at lvl5 again), since most of it is only reviewing? im a bit scared of failiure tho