Spam the action button refers to the idea that you need to keep putting up shots to land some in. It’s a volume thing. If you are a low percentage shooter, getting more shots on goal will do more for you than studying theory in some cases.
This is because you get real feedback and the tighter that loop is, the quicker you improve! Concerning yourself with how long something might take, drafting up intricate plans, etc. might literally just be an excuse for you to avoid the work you say or think you want to do.
Do it and find out. If you don’t disappoint yourself early, you will definitely hate disappointing yourself later and not know what to do with that feeling. Your faith will be more shakable vs someone who had continually tried things, failed, picked up again.