I'm almost 15 in 1 month and I've noticed that I have some pubic hair and it's starting to get darker I'm getting more leg hair like around my thigh and legs and I've noticed I m starting to get some facial hair. I still can't produce sperm but one time a little bit of a clear sticky substance came out. I have gotten like 4 voice cracks between the last 4 months like 1 a month but my voice hasn't changed and I'm really worried that it won't change can anyone please help me.
It sounds like you are developing just as you should be other than maybe being a bit late starting puberty compared to some.
You are in puberty now and from what you are describing everything is normal.
Your voice will change and you will start ejaculating.
You just need more time to grow and develop, guaranteed the changes you are concerned about will happen.