sometimes it just feels so overwhelming to sit with so many thoughts in your head

My mind just starts racing with thoughts all day. I overthink aswell so I just tend to sit in the thoughts and can’t escape. I mostly have thoughts that tell me I don’t like the things I do like snowboarding or backpacking or if I even if I love my girlfriend. Deep down I know I do but then I start getting worried that the more I think these things the more they come true. Then I have tons and tons of more thoughts throughout the day and it just feels like I’m constantly having anxiety and constantly battling my brain over things that don’t even make sense. I’m only 17 and this is extremely hard and I feel like I’m wasting these teenage years. I don’t know what to do or where to go. I’ve picked up reading my bible and praying more but the thoughts persist please help.

for me, it's like there's two folders of my thoughts, 'main thoughts' and 'sub thoughts' and it's like a background voice of my background voice, you know? like so quiet and irrelevant but it's still here and i can try to ignore it but not fully and it feels like it's just really nasty, like it's warring with me, never shuts up and just keeps nagging me with those thoughts

the anxiety is too much i can't keep still my chest hurts my heads full of thoughts im really struggling and don't know what else to do other than deep breathing and letting the anxiety be present