its pretty difficult to record at home without spending some money. if you have a mac, garageband is a pretty good free alternative to other DAWs, its basically a mini version of Logic Pro X.
you'll need an audio interface if you don't already have one. some of the best cheaper options are like £90 (or around $115 if you're american). anything by focusrite is pretty good and they're quite affordable.
other than that, you can make your music sound pretty good using stock plugins. experiment with different effects to see what you like the most. with things like compression and eq, there are hundreds of videos online that go in depth about them. a lot of the stuff on soundcloud is relatively lo-fi so i wouldn't stress too hard about making it sound great or professional or anything, just try have fun with the recording process and experiment with various things. hope this helps somewhat ahaha