can't understand derviatives from searching all over the internet I have tried to follow a lot of tutorials out there for explaining derviatives and show (understandable)examples but i couldn't understand any. Can anyone link me a useful and easy to follow tutorial or explain derviatives for me?

I would highly recommend watching 3blue1brown's series on calculus. If you're having trouble grasping the intuition behind derivatives, then his animation style definitely helps out. He has a clear geometric representations on different topics. Just remember that although his videos are very useful for intuition, it's more qualitative than quantative. Be sure to explore the topics even further on your own and do practice questions.