Hey man I'm right there with you with sleep anxiety. Ive struggled with sleep for as long as as can remember and melatonin makes me feel depressed after a couple days... My son is just over a year now and has not been a good sleeper. He was up every two hours or so for most of the year. He is is starting to sleep better now finally after a year. I had to call in to work a few times. I was afraid I'd loose my job. I was afraid I would cause an accident or screw up something major at work from constantly being exhausted. I felt like crying almost every day. I took short 10 minute naps over lunch break and would start the bedtime routine around 7pm just to try to get enough sleep. I've come to the conclusion that it never gets easier, different and new challenges will always come up. You just gotta keep trying.