tips to help with crying

any tips on how to get my one month old to stop crying. he will cry for hours upon hours and nothing works to calm him down (feeding,burped,changed,gas drops,rocking/bouncing) we just can’t find anything that will help calm him down. he will stop crying for a few minutes and fall asleep but as soon as we put him down in his bassinet or swing he wakes up and starts screaming. even tried holding him while he sleeps but he still wakes up. i’m not really sure what else to do.