Cosmo, you are not the first, and won't be the last to think that! I know that doesn't help much, but seriously, this stage doesn't last long, I know it seems it at the time, but you can and will get through it.
With DS2 I had an irritable uterous, started at 33+6, it was basically regular, strong, painful contractions that went on til I was induced at 41 weeks, once I got over the 'OMG this baby is never going to stay in there, he will be prem' the thought of having the rest of the pregnancy with less than an hours sleep most nights, looking after DS1, getting him up and ready for school, not being able to catch up on sleep in the day because the contractions were just continual the whole time. I was exhausted, in pain, every night we had to decide whether 'this was it' we daren't start cooking dinner or going anywhere, or doing anything in case it started, I had a home birth planned which I was absolutely terrified of, but had no choice because my MIL (who was the only person even remotely able to look after him), who had agreed to look after DS1 when the time came, didn't want to come and look after him when the contractions started at 33+6, so we had to plan for the worst (that DS1 would be around for the labour) Those 7 weeks were just an absolute nightmare.
Looking back now, although I can still remember all the fears and let downs, the 7 weeks themselves seem so unimportant, and this is what the morning sickness will seem to you once you are through the worst of it. If you have ever had a really crappy time that went on for weeks, looking back on it, none of it seems to matter does it?
The sickness won't last forever, if it gets very bad it would be worth talking to your GP, he can give you something to stop it. Maybe think about having some dry snacks next to the bed so if you wake up feeling like that again you have something to settle your stomache. It always feels worse in the night/morning because you won't have eaten for a while so sugar and energy levels drop.
Other than that, as depressing as it sounds, there is not a lot more to be done, it is just one of the many many stages you will go through now and when the baby is born. Luckily it is normally one of the shorter lived parts!