6 month old doesn’t sleep. Desperate!

My son wakes up every 15 minutes at night time. I will be lucky if he sleeps for an hour straight without waking up. It’s really bad. He’s sleep deprived, I’m sleep deprived. I cannot function anymore. He wants to be held the entire time, so that’s why he wakes up. I have to pick him up, rock him, and then put him back to bed. And yes I even co sleep because I thought it would help. It didn’t! During nap times, i’m holding him the entire day. I’m going crazy here because I only get 2-3 hours of sleep.

Everyone recommends sleep training but I’m just so scared of that too. They say sleep trained children are traumatized and insecure in the future. Which sleep train method did you guys use? My little bub is 6 months so gentle sleep training won’t work for him anymore because he is just way too aware and will hysterically cry anyways.