i wanna get 200 Kudosu to get the osu title, but idk anything about modding, can someone explain how to mod easily but in a detailed explanation?

The best way for you to start modding is to start mapping as well as improve as a player. In order to mod effectively, you need to know how maps work, and that's best learned through experience.

The way modding actually works, though, is that you identify issues in a map, communicate them to the mapper, and suggest ways to fix them. The commonly accepted "optimal" way to write mod posts is to follow a problem-reason-solution structure: point out a problem, explain why it is one and/or why it exists, and suggest a solution to the problem. This format will help you write clear and actionable mods.

There can be lots of different kinds of issues in a map: trivial things like missing hitsounds or clear Ranking Criteria violations, too much or too little contrast between sections, excessive gaps between two difficulties of the set, individual unfitting rhythms or patterns, and so on.

However, most of the issues modders point out are either easy stuff that the mapper missed or forgot about, or spots where the map does something that doesn't align with what the map seems to be trying to do as a whole. That's where the need for mapping knowledge really starts to show up: you have to be able to identify what the mapper wanted the map to be like, see that some element of the map doesn't support that goal, and find a way to make it fit.

Now, you can still mod with limited or even nonexistent mapping knowledge; lots of people start modding before they're especially good at mapping, let alone masters of the craft. It often helps people get better at mapping by applying their knowledge in a different way. The extent of your mapping knowledge just acts as a sort of cap on how effectively you can mod maps.

In your specific case, assuming you have as little mapping experience as your profile suggests, you'll probably be able to find RC violations with Mapset Verifier and point out stuff that doesn't feel good to play to you. However, the latter will be pretty heavily limited by your skill as a player, seeing how your top plays are below 3* in every mode.

Good luck, though.

lewski said the most so I will say some easy stuff

For timeline modding (map's patterns, notes, etc) you will need to know what a map need. Ex: is there a note missed ? Is this pattern need to buff/nerf, fit the music and gameplay ?

It's highly recommended to create yourself some maps and try to polish it for ranked, gather feedbacks, mods and learn from them, you will eventually learn more at the end. You can also find some maps that is pushing for ranked and see how BNs/modders mod the map.

For metadata mods, download Mapset Verifier and check the map, learn how a component in Ranking Criteria to be called rankable

Ex:
The following are requirements for background images:
Minimum width: 160px
Minimum height: 120px
Maximum width: 2560px4
Maximum height: 1440px4
Maximum file size: 2.5MB

I would assume you will need a couple of months to know basic in mapping and modding, but once you've learned all of those, they should be much accesible and fun
Good luck

adding to what was written above already - it may be helpful to read mappers responses to your mods that they rejected, especially when they're at least somewhat experienced. it happens a lot that seemingly something is an issue in the context of the map, but mapper provides you with reasoning why it's not - this helps with understanding mappers intentions overall

keep in mind that you will not always get a reply like that, and mappers dont necessarily have to be right - but overall i still think its helpful for improving at modding


also be sure to be respectful when modding, dont force the mapper to change anything unless its unrankable rc issue (somewhat covered by lewski above - problem/reasoning/solution format is very good baseline for this)

For me when writing a mod the formula; «whats the issue - why is it an issue - how can the issue be fixed» is a good way to go about it