Ranking from 800k-130k

Once you've made it to around rank 800k. Ranking up won't be as easy. But it's still very easy. keep doing what you're doing and look for songs that are still around the 2 star mark. By now you might have even finish some 3 star maps. keep going at these maps until you''re about rank 200k. This will take a few days but the first few weeks of osu! is just learning the different patters on maps as well as speed and beats per minute. all the time you've been playing you have been adapting to various different patterns and you're probably setting up some muscle memory in your wrists for mouse/Tablet movements across your screen to hit notes.

Tips to get faster

Changing the screen resolution:
So you've probably been playing in full screen mode all this time. This isn't an issue, but it may be limiting you. Some of the best players in the world play on full screen mode. But they have a lot of room on their mouse mat. a high percentage of players on Osu! lower their resolution by quite a bit just so they don't need to move their mouse/Tablet as much. This can benefit people quite a bit when it comes to not having enough room on your desk.

Get a tablet!(if you want)
A lot of the top tier players use a pen and tablet. The ones you use to draw with. these help improve accuracy ALLOT. You can adjust the area on the tablet so you don't need to keep dragging your arm around the whole thing as oppose to just moving your wrist. There is no specific tablet that is required, mostly any will do. Here is a list of the most popular tablets that players use.

CTL-460 - (Only available through E-bay)

Huion - H420 - £12

Wacom Intuos (small) - £50

Tillerino

Tillerino is a bot account on Osu! It is a bot that sends you ranked beat maps around your skill level. I'm only mentioning this now because it's hard for the bot to get an accurate reading of your skill level when you're such a high rank. I'd say you should start using Tillerino at around 180k ranks. You can gain access to him by simply adding him on your osu! client. Start a chat with him and you can use various commands. just start of with one simple command like. /r nomod. This will give you a ranked beat map that requires no mod to gain ranks.

3-4 star maps

This should get you to rank 130k very quickly as long as you are accurate and persistent when beating maps. You'll easily be able to beat 3-4 star maps at this rank.

Next i'll be talking about using mods and the pros and cons that come with them.