Manual evacuation

Dulcolax works much better for my constipation than miralax and I struggle to choke down miralax as well. I'd suggest trying that.

For Miralax, I would recommend mixing it in your desired liquid (I usually do Gatorade) 2 hours prior to drinking it. After you add the powder shake it up really, really well, put it in the fridge. I feel like letting it sit for about 2 hours and having it cold helps a ton with not noticing it is in the liquid! I have also mixed it in my coffee in the AM as well. It helps the powder dissolve too.

Citrucel is also an osmotic and is orange flavored and imo tastes better.