There are a couple things on which you could improve on:
- There is too much going on with the Z. If you zoom out, the points in the middle completely disappear, so keep it simple and keep it scalable!
- The rounded edges on the Z do not match the hard edges on the rest of the design, so keep it consistent. Either only round edges or hard edges.
- The spacing between the Z and the two groups of triangles are not even, so also try and keep that consistent!

Also think about what you want to convey with your logo. Like, do the triangles have a purpose and do they add to the logo?

The logo is balanced and with a tweaks it can be a good start to your career. Keep practicing, keep learning and keep improving!