Learn to play a song. Doesn’t have to be tricky, doesn’t have to be long — but everybody can play riffs and call themselves a guitarist. Playing songs is what makes you a musician.
Learn to play a song your parents know and would like to hear. They will be proud of you.
Learn to tune without an electronic tuner. Armed with one reference note and harmonics, most strummers will never need anything else ever again.
How you get that one reference note: Buy multiple A440 tuning forks. They are cheap. Keep one in your guitar case, one on your desk/home music area, and if you carry a bag with you every day, keep one there too.
Skill and talent mean more than your gear — but don’t buy crap. If it’s cheap, there’s almost always a reason, and that reason often becomes an excuse for not playing. If you do not enjoy interacting with your instrument — it’s not comfortable, it doesn’t stay in tune, it doesn’t reflect who you are — you will not play it. Save more, spend more, buy quality, and get what you really want. Your playing will benefit.
Don’t end your practice on a bad experience. If you are trying to learn something and you are sucking, end your session with something you are good at playing. Don’t walk away angry or frustrated or you won’t want to come back.