I feel for you! My first DD was colicky and cried pretty much whenever she was awake. This one is gassy with totally different symptoms than DD #1 had, but still is very fussy. So that old saying, "Nobody gets two screamers"? Yeah, well, I did. ;)
One thing I would DEFINITELY recommend is the book "The Happiest Baby on the Block." In short, it recommends the "5 S's" which are:
1. Swaddling
2. Swaying/Swinging
3. Shushing
4. Sucking
5. Side (as in, lying them on their side.)
It absolutely 100% works. Granted, it's labor intensive to do all 5 S's at once, but it beats hearing your baby scream. By the time DD #1 was 2 months old, I even mastered the swaddle and sway with a glass of wine in one hand! lol
Good luck and hang in there...this stage WILL end!