I quit my studies so I could spend time at home sleeping and vomiting.
Along the way I learnt a few techniques which just about saw me through.
For MS I always made sure I ate as soon as I woke up, normally cereal with full fat milk. I also snacked throughout the day and only ate what I thought I could stomach, never forced myself to eat anything I didn't fancy. Some food is better than no food. Everything was bland. Fries, crisps, bread...it's all I could eat and I told myself that was fine.
For exhaustion, I slept. And slept. Whenever and wherever I could. I even packed a blanket and pillow in my car and many times ended up pulling into a car park and crashing out on the back seat for an hour or more. Oh, and I always went to bed before 10pm.
I suffered with depression, for which I did online CBT and mindfulness meditation, continued taking meds and confided in my sister. I also had anxiety which I remedied much the same way as well as avoiding trigger topics like MC threads for a while.
I wish I had a nicer tale for you but for me, first tri was bad. Still, I'm pretty sure mine was quite a severe case and most ladies seem to do much better than I did...and by 9 weeks I began to feel it lifting...Now my symptoms are a million times better. I have my life and my time back again! No more car naps!
Focusing on the baby is great for getting you through too. It's hard when it's so tiny and it's so early, but it did keep me determined to get through each day. An early scan really helped with that.
Most of all, allow yourself to be how you are without getting too upset about it...I would burst into tears at totally random things like if my partner wasn't hungry when I was or if he went out to the shops. I felt silly, but eventually just started to laugh it off. It meant the most magical thing in our lives was happening after all.