@Till23 no worries at all - do take your time, i know those forbidden errors can be frustrating! there's no rush at all 😊
one of the things i struggled most with (and still sometimes need support with) is the 'not caring what others think' part. like you mentioned, logically we know that people aren't thinking about us as much as we think, they're probably caught up worrying about themselves... but there are times where things they say stick around. my psych once asked me, if they do judge you, what's the worst that their words could do? what does it say about the person saying those things? what does it say about you? i really sat with that for a while. at the end of the day, we get to choose whether those words mean something to us or not. if someone isn't kind or gentle with us, that's a reflection of them more than us, right? often times, no one knows us better than we know ourselves... so why would we let someone who doesn't know us dictate how we act/feel? just some things to reflect on (this sort of reflection stuff was helpful for me but if it's not helpful for you, pls let me know!)
as for the connection aspect - it does sound like your dogs meant so much to you. whether it's connecting with pets, other forms of nature, human beings, etc., that connection is so vital. it's absolutely fair to crave it. did you feel that connection with your teammates when you did your sporting comps? would you be open to joining f2f social groups?
i also wanted to acknowledge that having cancer and going through treatment, etc., is no small thing. i get the sense that you feel like what you've gone through is 'less' compared to others, and i too have made similar comparisons with my own life. but i do feel minimising it doesn't erase the difficult time, and often makes us feel even more guilt. please know that your experiences and feelings around it are valid, no matter how big or small. it's okay to feel a lot, i know i do. it doesn't make us weak 💗