Electric guitar basics?

That's pretty much what I did, although it tended to lead me to focus on vocals more than guitar.

Maybe try looking into a Boss BR80 if you want to play through headphones atfirst. It's a small recording device which you plug the guitar into but it also is an amp simulator and has many of the Boss effects that you can add. It will give you an idea of what the different amp and pedal effect sounds are like before you end up buying one blind and is generally really fun to mess around with. A really cheapo effects unit with a looper pedal might be a good start too.

for the amp, yamaha thr, vox adio etc (headphone jack, audio interface for pc, models various amps... also buy used)

Only buy used if you have a friend who knows how to find good gear, too much risk of buying broken/used up trash otherwise.

Can anyone put like a tier list of amps? I feel like a retard there's just so many choices. I'll simplify what I need: I want to play without disturbing anyone like plugging headphones in a digital piano. Can't you just plug headphones to a guitar or an amp?

lmao just go on reverb or guitarcenter's used section
qc is pretty solid

you can plug headphones into a lot of guitar amps
boss katana is the best cheap solid state amp
fender blues junior, vox ac15, marshall dsl combos are the best cheap tube amps
that's all you need to know

also, there's a difference between disturbing anyone and being insecure
just sit closer to your amp

You can plug headphones into basically any amp except it won't sound great because a lot of the "tone" of the amp actually comes from the speaker rather than the amplifier itself. This is why people recommend plugging into something that is intended for headphone use like an interface/PC or something with actual speaker emulation (which some amps may have as a feature).

Yamaha Pacifica or any Squier are good choices.
Picks are all up to which one you're most comfortable with with your play style. For someone who is just getting into Clayton standard picks with the .8 mm thickness.
The other stuff you can figure out on your own.

For the amp, just about anything will do for practice. If you get a 5 watt practice amp you might actually be able to play it inside depending on how cool your housemates are.

My recommendation to you, is to get a modeling amp. Modeling amps come with effects built into them so you dont have to spend a thousand bucks on pedals and stuff, I recommend the Fender Cyber Deluxe (more expensive, heavy, but comes with loads and loads of effects) or the Boss Katana (smaller, cheaper, but way more limited in terms of effects. Both have a headphone jack.

For headphones, just find some studio monitor headphones for cheap, and get a 1/4 inch adapter. You'll need it to plug into the back of the amp.