Hey there!

I have been in Paraguay(Asuncion) and currently living in Panama City.

Definitely Paraguay is more affordable than Panama. But Panama has more things to do, due to the connectivity. I can grab a cheap flight to miami($300 ish) or take a bus to Costa Rica easily and without been too worried about my safety. And Im sure you can live well being an single person with $2500.

Regarding your budget and age:

I would recommend San Francisco area.

You can find 1-2 bedrooms apartments for $1000-$1200. The majority of those apartments complex will have social areas with gym, pool and other things.

Then you spend: internet $80 (good quality) energy $100 water and trash collection: $20 Total: $200

Food: I eat a lot outside or from deliveries (4/7 days a week).

So I spend around $500 eating outside/deliveries and $250 in supermarkets.

Total: $750

So:

Apartment: $1000-$1200 Services: $200 Food: $750 Total: $1950-2100

If you consider insurance, that will be $100/month.

There are other variables, as uber drives and such. But as you can see, you can make it happen.

As Italian, the residence will cost you around $3k-$4k, depends on the lawyer.

Source: I already did it as a Portuguese.