I am new in Git. Is there possible to create commit message step by step during developing? Because I find it very exhausted to review all changes during commit or committing to frequently. Sorry if I am crowding questions in here :)
Just check changes in as you make them, don't wait until you have a large amount of changes. Not only will this make your commit messages more manageable, but it will help you version control your work better, allow you to track changes more narrowly, reverse them if need be etc etc.