As per Spanish... just start learning and don't listen to any of us!!!
Each person learns at their own pace and will decide how much they can 'handle'... sometimes it is good to take a break from it... and then return 10-12 days later. You will be surprised. As 'dave' said... considering our ages... becoming fluent, or even close, is probably not going to happen unless you do nothing 'but' study Spanish all day, every day. The verbs are the hardest because learning just one of them can require memorizing up to 25 or more words because the verb changes for each person; plus there are irregulars at every turn.
But get the basic present, basic past, and basic future... as well as vocabulary. I keep a tiny tablet in my pocket and write down every word I hear that I don't know... or even small phrases. Of course, it makes sense to know/learn the pronouns, the days, months, numbers, and basic Pronunciation... which is really easy because every vowel only has one pronunciation in Spanish. What you see is what you get... unlike English. example: after, laughter, slaughter... ??? or.... to, two, too.
Where I live virtually nobody knows english... and what they get in rural high schools is rubbish. And that is only if they even attend High school... very common to just stop going/drop out. I know nobody in my village that went to and graduated from high school that is over 50 years old. My village lost their English teacher from the elementary school due to budget cuts last year, as well as the bus. Reason.. the village is too small. So don't believe everybody that English is baked into the 'program' here. In theory, yes... but in practice. not even close. And the 'new' President isn't keen on CR being bilingual... so more cuts are due to occur. I do my best at volunteering to teach english classes if asked... and currently have 5 different classes... from adults who want to get jobs in tourism, to the local elementary kids who will be far behind the other kids when they get to high school because the largerK-5 schools still have English. I even teach a family of five because they live remote and their 'school' is a one room shack with 1 teacher for 7 kids and no wifi.
So just do your best... learn what you can, and start using some rudimentary Spanish around the house for practice. Replace your english with Spanish numbers, food names, the time, adjectives, etc. Make it fun... not a job.
Buena suerte.