Is this good?

I was wondering if this woupd be considered good for a beginner since I just recently leqrned how to ride a bike at the age of 15 (embarrasing) and I'm now into it, I decided to measure how fast I could go, although I can't sprint very well yet since I'm scared of losing balance.

I was wondering if this woupd be considered good for a beginner since I just recently leqrned how to ride a bike at the age of 15 (embarrasing) and I'm now into it, I decided to measure how fast I could go, although I can't sprint very well yet since I'm scared of losing balance.