Good job. Congratulations!
Get yourself a good first radio. And a good antenna. If you go too cheap, you will be disappointed. If you are in an area where there are repeaters (and hopefully amateur radio clubs) you will be served well by a handheld. If you're further out in the boonies you're going to need a better antenna (like the J-Pole mentioned below) and more transmit power. For more power you're going to have to move to a mobile rig rather than a handheld. Be aware that for a mobile rig (that you use at home and not in your car) you will need to buy a separate power supply for it - which may cost you almost as much as the mobile rig itself.
With a handheld, you have everything you need right there in the box. These come with rubber ducky antennas that are generally worthless however, so you will probably need to buy a better antenna (see the SignalStick mentioned below). With a mobile rig, you'll need to buy the transceiver, the power supply, some cable, and an antenna. So when you're browsing catalogs and looking at prices for a mobile radio, figure on doubling that amount to cover buying all the other things you'll need to make it work. If you don't have a specific family/friend use for your new radio planned, and you don't have actively used repeaters in your area, plan on listening to a whole bunch of silence most of the time. Find yourself an actively used repeater that hosts a few "nets", and jump in there!
My personal choice for my first radio was this:
Yaesu FT-60R
And my first antenna for the above radio was this:
https://signalstuff.com/product/super-elastic-signal-stick-sma-male/
And a more stationary antenna (but it can still be moved) that I picked up was this:
https://www.jpole-antenna.com/shop/2-meter-break-a-way-j-pole-antenna/
You will need to buy some cable to connect the J-Pole, but the decision on that (what specific type of cable, what length) will vary with your personal installation.