EDIT: As I have seen some close votes for too broad. Please communicate the issue with the question so that I can edit it. Because I believed the question to be "not too broad" as my question is clear: How to communicate to my brother to respect my life choices?
I have a brother that is 7 years older than me. We normally get along very well, spend once or twice a week time with each other because we live in the same town for a couple of month now.
Now my problem is that he is VERY straightforward pushing and confrontational. He is a very very sporty person and wants to push everyone in the same direction, because "it's healthy". Which is true, but you have to respect personal choices and sometimes he does not get that. Especially with me.
For example: We go bouldering* regularly (he goes more often and thats his main sport) and expects me to go regularly with him as well. And mostly I do that because i like it and its fun. But sometimes i just want a lazy evening, or simply not go, and I'm almost afraid to tell him straight up "I just dont want to!" because I know that he will a) be angry at me because he is a person that gets angry fast and b) he will try to convince me and try to make me feel guilty for not "doing the healthy thing which is good for me!".
Or sometimes when he writes me via facebook, and I simply don't want to answer for different reasons, or sometimes can't because I dont see it, he gets angry with me for not replying as if I was entitled to answer him everytime he writes me and at best instantly! As example: he wrote me yesterday to which I did not answer and today morning comes a text why I dont answer him even if I got nothing to do the whole day (not so much to do at work currently). To which I answered that I dont look at facebook during work and he could contact me via whatsapp because I have whatsappweb open at my worklaptop. To which he just answered why I didn't reply to him yesterday in an angry manner. And sometimes he messages me over and over again at different medium which is VERY annoying because I just want to be in quiet sometimes (no introvert or anxiety but just enjoying calm sometimes).
How can I communicate to my brother that he has to respect MY life choices to do sports or do a lazy evening? And that he has to respect it or deal with it that I sometimes don't have the time/energy or motivation to answer his messages. Other than that we have a good family relationship, we get along well, and do other stuff as well like going out sometimes. But as he is a very convincing and dominant character, he can be very rough and pushy and I would like to be able to communicate that to him that he has to respect others personal choices. Especially with me, as he still sees me as his little brother that can't handle himself, but I am 22 now and very well capable of handling myself.
NOTE: Because someone said I should just say that to him. The reason this needs some IPS is because he wont really listen to critique on hist person. He is very resistant in his regard and always only sees his side. And pushing back bluntly is not an option because it's not about standing up to some bully but to make this clear to him without burning bridges as he is my brother and we have a very thight family and we see each other often.