P6 R8.2

1. look for / buy Project Management / Planning Books or Materials

2. Read, Read, Read

3. Learn, Learn, Learn

4. apply what you have learned

I’d like to be more constructive, but Anoon is right. Your question could be distilled to "how do you plan, what are all the tools". It’s a bit too big a question tbh, a bit like going on a car enthusiast’s site and asking "how do I fix engines?"

Don’t be discouraged though, you’re entering a whole new world!

Look though this forum, there are a couple of threads where people recommend books on planning procedures. Get a recommended one that relates to whatever corner of industry you’ll be planning in and read it. There is also a page of links to internet based resources, much of it free.. Also, try to find an experienced mentor, they are worth their weight in gold.