How do you genuinely make it up to people?

because i need answers like i really really want to fix my mistakes and make it up to some people and i just don't want to say sorry. Sorry fucking sucks without an action followed by it. I don't want it to be "someday" or whatever, tell me a way to make it up to someone cause i'm done with words, i want actions followed. It's hard when the other person doesn't tell you what it is or that "it's too late" cause i don't care, no matter what. I want to right my mistakes.