Welcome Jen - I know how you feel! I have a now 6 month old high needs baby girl and all I can say is hang on in there!!! I know it is hard especially when friends have 'easy' babies - it can be so disheartening.
There is a light at the end of the tunnel after 5 and a half months of hell - one day our little girl just seemed happier

and at the moment it has stayed that way. I heard from a couple of other moms on here that high needs babies usually start getting better around the 6 month mark - I hope this will happen for you too. I know when you are in the fussy/demanding nightmare a day can seem like forever let alone a few months, but it will get easier. Lara still needs a lot of stimulation, but as long as she gets it she seems happy.
It is always hard for people with 'easy' babies to understand those with high needs babies - it took me too long to stop comparing my baby with others! She is who she is and I wouldn't chnage her - she seems so much more alert and interested in the world than thoses 'easy' babies. I even sometimes think that having an 'easy' baby may be too boring for me now

Anyway, just wanted to say hi and give you some hope that things will get better - you will always find help and support on this site when you need it