I played BotW a lot, and really loved it. I feel like the beginning of the game was relatively easy compared to TotK, I died a few times trying out things, discovering the game and possibilities ; in TotK I died a lot and still do even with good gear and armour (1*-2* armors, 30-40+ damage weapons). You could say it’s skill issues and I would agree with you as I am not a pro player and play games once a week maybe, however I feel like the difficulty curve is far greater in TotK. That has affected how I view the game to the point that sometimes I think I dislike it (even though the new powers are the best thing they could have added, with the verticality of the world) ; that might also have to do with the much darker ambiance of the game, which can feel frightening (to me) to the point going underground is hard.
Is it just me? Should I just “git gud”?
I agree, the early game is definitely harder in ToTK than in BotW. The vibe feels a bit similar to Noita, IMO, in that the odds are stacked against you, and you offset the disadvantage by making liberal use of as many overpowered combos as you can think of.
Anyways, my advice is really just that. Find good combos, and spam the hell out of them. One easy thing to do is to burn chuchu jellies to create red chuchu jellies. Then, fuse them onto arrows to create incendiary arrows. Great for dealing with crowds, and the explosion radius isn't as big as a bomb flower, so there's less chance of you accidentally killing yourself. Red chuchu jellies's function similarly to fire fruits, but I just find that it's easier to get a ton of red chuchu jellies.
If you're in snowy areas, you can also shoot down some icicles and fuse them onto spears. That freezes any enemy that it hits, which is good if you get surrounded easily. You can also collect ice fruit/white chuchu jellies to make freezing arrows.
In general, you get way more arrows in ToTK than in BotW, so your playstyle will naturally need to lean a bit more into long range combat to make effective use of your resources
Here's a couple other interesting interactions you can take advantage of:
find (or ultrahand) a heavy object. Drop it onto the enemy.
wind staggers enemies. If you find an enemy charging up an attack, take out a guster and blow wind at the enemy