It’s a juniper. And fwiw first trees don’t last very long. They have to absorb all the mistakes and endure the sharp learning curve that comes with bonsai.
First critical lesson is learning how to water what you have. This tree won’t be easy. Whoever sold it to you has it potted is pretty crummy soil for a juniper. The soil has a lot (if not completely) organic (peat moss bark) soil. Juniper hates wet feet and very free draining soil.
You will have to water carefully to not keep it too wet
Also if you’re planning on keeping this inside -don’t. Junipers will NOT survive very long indoors. The conditions inside - low light extremely low humidity and little air circulation weaken the tree and will eventually kill it. If you’re not watering accurately inside it will accelerate the decline
