Apologies in advance for this long comment: So my studying is a bit of a mixed bag. I’ve used several beginner textbooks (some to study from, some to review from and some to help friends or family to learn from along side me) though I’ve settled happily on using Minna no Nihongo for my overall studying (I prefer the immersion style than switching between Japanese and English).
For speaking I’m using Paul Noble’s Japanese audio courses and shadowing materials.
For reading, I use a variety of resources; ebooks, graded reader, bilingual short stories, reading sections in textbooks, reading easy NHK News, novellas for language learners, parallel texts etc. but I’ve mostly stuck to things I can read or things still within N5/N4 level and not upscaled to full native content though I have a good variety of LN, Short story collections and novels, both original Japanese and translations into Japanese to work from once I’m ready to make the switch. I prefer physical books but do have a good stock of ebooks as well since they’re easier to read in dark lighting and at work etc on my phone.
For listening, I tend to use audio books, Video games with Japanese voice overs, podcasts by native speakers both for language learners and just random podcasts about daily life etc but full Japanese with no English speakers, anime series, dramas, films, music and reality TV series like Terraced house.
Writing is my weakest skill but that’s more from not knowing what to write about. I use a multilingual website for language learners called Journaly. You can write posts which natives or higher level language learners of that language can correct. And you can correct posts for any languages you know natively or to a higher level.
My favorite dictionaries are the dictionaries of basic/intermediate/advanced grammar in physical form, my kodashan kanji learners dictionary and in digital form imiwa, and Kanji lookup (good for compound kanji).
Only SRS I use currently is Wanikani (Kanji, radicals and vocabulary) and Renshuu app (grammar and vocabulary from textbooks and other sources)
My time for studying (active or passive) varies based on my needs, if I’m struggling with anything, work constraints (I do have weird shifts and sometimes work 12 and a half hours in a day) and generally how I’m feeling. I tend to get about 4-8 hours per day when not working, 2-4 hours when I am working (at least half active, the rest passive). I get passive listening time while driving or doing menial tasks (music, audio books, podcasts), reading is focused time, mostly extensive reading with little looking up but I will re read chapters a second time while looking up vocabulary I’m unsure of. Watching a film, episode or such I don’t count as studying since I mostly just watch and keep a note of any vocabulary I’m unsure of and try to recognise grammar points but don’t pick it apart piece by piece, also don’t use any subtitles).
I tend not to set any specific goals for reading but will note approx times for reading and how long it takes to read a chapter while still understanding it then see if I improve on that as I continue or if my next read through is any quicker and if I’ve picked up any new words etc.
Time wise for the different skills; reading, writing, speaking, listening, I tend to find that each will have different time allocated to it depending on my focus but I actually don’t set out to think I’ll spend x amount of time reading today or x amount of time listening. I just do what I feel like and switch when either I’m bored or I’m feeling overloaded and can’t focus. Since immersion works best for me, all my free time activities are Japanese immersed unless I’m accessing things like here or Wanikani, so even if I’m not actively studying, I’m usually either listening or reading in Japanese and very rarely do any activities in English unless it’s something with friends or family who aren’t studying Japanese.