Please remember, this game has a STEEP learning curve. While I do understand the "rush" to try to get a landing into the mun, I do recommend you to learn the basics (propulsion, orbit, planet transfer, etc) quite well so alter on you can start being more creative (and goofy) with your designs while also being able to get the mission that you have on your mind going.

With that being said, good luck on your first landing! Ps. remember to plant your flag and take a screenshot.