I was just over on Bantayan island in the Philippines a few days back. Met a lot of Europeans that stay their for 4 months at a time. You can find rooms for around $165 a month if your ok with something minimal. Summer time is just starting so there will be nice sunny days.
There is wifi on the island, just not super fast. Bring a Kindle with some books etc.
The Philippines is such an awesome country, I loved my time there. Beautiful, friendly, great food, cool culture. Downsides: Extreme poverty juxtaposed with extreme wealth, thousands of homeless children in Manila alone, I met some of them and I wished I could take them all home with me.
Here's one suggestion: go to Florida and watch a rocket launch (schedule [1]). During the ascent, reflect on how far we've come since our ancestors were banging rocks together to make sparks for fire. And maybe reflect on how far we have to go still...
I would take part in a wildlife volunteer project, in my opinion a great chance to connect with nature. See if there are projects in the countries you want to visit anyway.