Well, in my humble opinion, i think N3 is certainly doable at your current stats, its hard to determine what your listening comprehension looks like and how much of this grammar already burned into your brain. One good way to analyze that is to do 1 or 2 mock tests to determine how close or how far you are from a “passable” grade, if you get a very bad result you will know that you have a lot of studying still left to do, so that could help you in determining how good is your probability of passing the test.
In my case, i took the N4 in july here in Brazil (think i passed), somedays after the test, i took a N3 Mock test to see how well i would do, and… i did very poorly, i still have a lot of N3 kanji to learn (Lvl 21 on WK) and still have a lot of grammar to learn as well (11/219 on Bunpro), so i determined to not take the N3 in december, because i don’t think i’ll be able to get ready in time with my current schedule. So, i’ll be trying it in July 2025. Hope to have helped you with your decision.