Hello! You ask some good questions!
First of all, if you are worried about your results, you can always perform another trial. But in general, it is totally fine if your hypothesis does 't align with your conclusion - your hypothesis is just an educated guess, and scientists have been wrong many times before. It just means you learned something new
Also, even if your results aren't "cool" or what you expected, that doesn't make your experiment any less valid.
Hopefully this helps, but let us know if you have any more questions!