This is about more than pretending you've got your game together. It's about feeding yourself the diet of someone who is succeeding in what you're trying to do.
Read the books successful people read.
Watch the videos successful people watch.
Incorporate the exercise and diet that a successful people have in their lives.
Pretend to water the fake plants.
Keep layering on all the things that successful people do, and you will think the way successful people think. And thinking like a successful person means taking the actions a successful person would take. And taking action is how success is actually built.
Go grow a forest of fake plants, and treat them as real until, one day, they are.