Welcome Caleb, welcome to the exciting and fascinating world of modeling. I would recommend starting with a 1/48 or 1/72 scale aircraft,( you said you like planes), this will give you an idea of how big,( or small), the finished product will be. My personal comfort zone is 1/48th. There are a wide variety of inexpensive kits available ie. Revell, Monogram, Airfix, that have reasonable detail without being overwhelming to a beginner.
As for tools well here is where things start to get expensive, you will need a good X-acto knife( #11 blade), a small pair of flush cut " nippers", a selection of sanding films( Testors or Miro Mark), and finally glue. Many people use a thin liquid cement like Tenex 7R or ambroid Pro Weld. Make sure the one you choose is for styrene, some glues will not bond plastic or will be to "hot" and leave you with a puddle of goo.
Now the hard part, PATIENCE. Not sure of your ultimate goal as a modeler, which isn't really important at this moment, patience pays off. Read the instructions, look closely at the assembly, dry fit, then SPARINGLY apply glue.
Once you have become comfortable with the build, then you move on to finish, don't rush it, that can be REAL expensive.
So all that to say welcome, ASK questions, and above all ENJOY where this hobby can take you. Don't be a stranger.