Don't pressure yourself to BF OP. No point sitting all day with a screaming fussy hungry baby. I know others will say go to groups, find support groups, phone HV/Midwife and so on. But the reality is there's little support non pandemic let alone during a pandemic. This isn't right, there should be an abundance of it, but the reality is there isn't, and for both you and baby, honestly, fed is better.
For night formula feeds,
You could look at the perfect prep machine and make up your own decisions of it's safe or not. I used one with DS never had any problems.
You could do the old flask technique for fresh bottles, so one flask of cool/cold boiled water. One flask of boiled hot water. Add the powder to the bottle, then add the hot water 2oz, mix/shake with cap on to dissolve the powder and then 4oz of the cool water to bring to 6oz at appropriate temperature for baby. And shake bottle again before feeding.
The other option you have is to buy the little bottles of premade formula for night feeds. Then it's simply pour in to bottle and heat in boiled water/bottle warmer to feed.
OP you are doing fine, honestly, you've got this. I know it's hard, but you are doing well.