Which of the following requires the most energy output...
...moving matter at rest (for instance, a ball that is standing still)?
...keeping a ball in motion?
...accelerating a ball in motion?
Taking the first step feels hard because it is the hardest! That is why 90% of success is just showing up. Avoidance is the killer. What step have you been avoiding that you can safely take now?
The rest is nowhere near as hard - energetically speaking, that is. Just ask a physicist.
The most important thing is being willing to try. If you are willing to try, then you will learn from practice and mistakes and eventually achieve competence.
You never start out being competent, so waiting to be competent before you try, well I think you can see how that would be problematic – you will never make it out of the gate. Why box yourself in this way?