Hi and welcome
At 16yo you are in a transition period in terms of all things sexual. Even straight guys your age are confused about various parts of their sexuality but maybe not in terms of orientation but other things- insecurity, lack of confidence etc.
The better way to go about this is to let your thoughts be fluid, eg if you like a girl, you like a girl, doesnt matter that you might be gay or not, like a boy, same, like the boy, not crime committed. This is the ultimate of being yourself which should be everyone's aim- why? Because your mental health will thankyou for it.
Worry and anxiety is a terrible thing to develop. I took 22 years for me to rid my life of anxiety, some people might take less or never get rid of it. Relaxation is a good start to implement in your lifestyle.
I'm 63yo and a lot of changes to society has come about over the last few decades. LGBTIQ people are by most people accepted as they are and I have some friends and two relatives that are gay- beautiful people. Their happiness is my happiness.
Here is a few threads you can google
Beyondblue topic you are a jigsaw piece
Beyondblue topic the frog and the scorpion