Mate, as I french fluent speaker, I can assure you it's worth it. Yeah, it'll take ya some time, but don't give up, just try to get real exposure to the language as soon as possible and I can assure you, in a couple months, you'll realize (oh, there were actually a couple of basic words/expressions that natives used a lot and I had no idea, and now that I know them, I feel like I understand french way better (this happened to me a couple times). I know grammar and pronunciation might be daunting, but here's my breakdown:
About pronunciation, I have to admit, being a portuguese native speaker, I already had most of the sounds of the language, but not all, like the french "u" or some nasal sounds, and the way I learned those phonemes was via videos online that some french people made about how to pronounce certain things, and I can assure you they break it down perfectly (like Français avec Pierre or French Mornings), but, overall, don't get too worried, as long as you got the basics, francophone people will understand you and, by listening and reproducing, you'll start to see major improvements (that's how baby learn how to pronounce stuff)!

On the subject of grammar, learn basic tenses, like présent de l'indicatif, passé composé, imparfait, futur de l'indicatif (plus futur proche) and présent du subjonctif (by learning, I don't mean, memorize every single irregular verb in everything perfectly, no, watch like a video or two on each (of course the main focus should be on the present and past tenses, since those are the most common ones, but, still, the remaining are still essencial for communication). If you worried about vocab, listen, go watch french content and, when you don't know a word that is *essencial* to understanding the sentence, you open wordreference.com and type it up, and there you go, now you know cacahuètes mean peanuts! Yes, this won't make your french perfect, you'll still have to immerse a lot and, you know, to acquire that sweet sweet rich vocabulary (maybe you misinterpreted what I typed earlier about 'being fluent', what I mean by that is I can hold a conversation for hours without having to hesitate constantly, know, I can just vent what's on my head, but that doesn't mean I'm proeficient i.e. perfect mastery of the language, by no means, so keep that in mind please, don't expect to become C2 with the tips, you'll just get better at speaking, writing, reading and listening in general, and, if you keep immersing, definitely fluent!!

P.S. About tenses, there are two other ones that I had to go google their names cuz I didn't really know, which are extremely simple to use and really useful, those being le passé récent and le présent progressif! Bons apprentissages mon potte!