Wish i had tips, but im feeling your pain! Im 10 weeks, my first pregnancy and i pretty much permanently feel like a train wreck... I have a window of 3 hours at night when i feel good... the rest of the time Im basically a zombie! ... is this really what i signed up for ? lol

I find drinking english breakfast tea with sugar helps.... And eating an orange is really good too...Other than that i dont know what to suggest as more than one or two coffees per day is not recommended - im not drinking coffee at all...

It could be this heat that making you tired, its pretty exhausting even stepping outside where I live