Just you know... start off small 'n simple and get gud at building Planes that actually fly, rather then flop around in mid-air.
Or
Just ignore everything that I just said and do something different. Very different.

My best suggestion is to go to other people's profiles and download some of their planes to tear them the heck apart to figure out how they work. save any cool sub-assemblies for your own builds.
Find somebody else's plane and improve it. For that you need to find one that is less polished than the professionals ( the guys in Black) or like a really old one.
Those are always fun to update. Just make sure to give credit as a successor to the original Builder. And or tag them in the build when it is published.

Oh and also I am ThePrototype . I mainly build gliders and if you ever need help just ask me :) oh and I occasionally build stuff involving pistons

Experiment on what to build you may find you like certain types of aircraft ex: I found I like gliders , so just build all sorts of stuff and see which one floats your boat

You can look at the how to build section of the game for a place to start.

And welcome!

I can help quite a lot in fact! thats sort of my job here! and being a sassy human.

Welcome to sp!

Hello! I am phanps! I am always on stand by. So if you need help one day , feel free to tag me on what you need assistance with. I will gladly help you. Cheers, have a good day!

@Dynamicneedle I want some aesthetics put on the plane... i.e. designs.... You pick!

@TheEdgeOfSzon what do you need help with?

@Jetpackturtle I'm working on a tank right now... Wanna help?

@TheEdgeOfSzon Ah. That wouldn't be me!

@Jetpackturtle I don't really want to release a crappy plane... So I need aesthetics help from those who are working aesthetics for a long time.

@TheEdgeOfSzon If ya need help with a buggy, that's about all I specialize in :P

@TheEdgeOfSzon That's not bad!

@Jetpackturtle @SAC923 @helilover03 @Awsomur @TheEdgeOfSzon @Dynamicneedle @saturn28 @ProvingMars @ThePrototype hahahahahahahaAahaahhahahahahahahaha..... I got my hands into some mods after watching​ FranticMatty on YouTube... and I made this plane

Hi! I'm JetpackTurtle! I make... well... not a whole lot of great stuff, but I like to make buggies! Welcome!

@TheEdgeOfSzon yes, all of the community is the nicest community you will ever meet, we are all helpful people, and I know a ton of things about cars too
Welcome!

Indeed. @TheEdgeOfSzon

@Awsomur being rude must not be tolerated

@helilover03 what is no joke? Making a shiny tiger?

Most of the users are. Some people like to muck it up with profanity and viruses but their banned immediately. @TheEdgeOfSzon

@Awsomur @Dynamicneedle @helilover03 oh my god guys, I really hope all of the community is like this!

I just found a shiny Tiger from the front page! How did he make that?