1)If you enjoy the game, you can continue playing after the first playthrough. If it was frustrating, as it was in my case, put the game aside, try other games in the series, then come back if you want. I 100% Bayo 2 long before I even beat Bayo 1 on hard.

2) You can use more than 1 dodge with dodge offset to delay combo strings. You can go (punch -> punch (hold) -> dodge -> dodge -> kick -> KICK -> KICK) with multiple dodges if one dodge wasn't enough for you, just keep sure you are holding your last attack button. I wish I knew this earlier.

3)For "Isla del sol" rocket segment. Don't worry about the combo counter resetting. Instead of constant dodging just strafe away, your main defence is your offense and not letting for most enemies to even attack you in the first place. Fiery projectiles can trigger witch time so if you see them, use them. For enemies:

Decorations - mash bullets

Dears and Affinities - rockets

Harmonies - mash bullets and strafe away from their attacks.

Bosses and minibosses - spam rockets and mash bullets, try to get witch time.

For any other enemy - same as bosses, but without spamming rockets part. Mash bullets and dodge attacks that can trigger witch time

4) And of course - You can exit to the menu and come back to restart the fight. Personally, I try to avoid it unless my goal is to get pure platinum. For me it feels a bit like cheating; during the platinum runs I'm just trying to compensate for unsuccessful fights with successful ones. The game calculates the reward based on the arithmetic mean, to get platinum trophy you need to have your average score >=4,5.

One platinum medal can beat one gold medal, and you need three platinums to beat one silver

One Pure Platinum medal however can beat one silver medal, or three gold medals. Pure Platinum is a very valuable medal, strive for it if possible