When I manage to do something, what is the difference between "I made it" and "I've made it" and when to use them?

Please give me a long answer to understand this correctly.

If I want to say that I was able to accomplish something, when should I say "I made it", and when should I say "I've made it"? What's the difference between the two forms?

Please give me a long answer to help me understand this correctly.

When I manage to do something

What is the difference between I made it and I've made it and when to use them? please give me a long answer to understand this correctly

When I manage to do something, what is the difference between "I made it" and "I've made it" and when to use them?

Please give me a long answer to understand this correctly.