It's pretty nice for a first project, the idea is interesting and challenging.
One thing I noticed is that at one point I just couldn't go up. If I picked all the energy in the lower part, sometimes I couldn't reach the higher part even if there was energy there, ao I couldn't pick it and keep going.
You got a nice idea going, the controls could use some tweaking, the control to move horizontally felt a bit awkward.
Overall, nice job!