You are not spending 100% of your income, right? You only need to double or triple the income you spend on rent and living costs, not the portion left over for savings to keep the same standard of living.

That said, if you are earning $100k in Vilnius, then it will be extremely difficult to find a higher-paying employment offer relative to living costs anywhere in the world. Maybe you can make 1.5-2x that if you go to work in finance - but you will most likely need to move to some of the most expensive cities (Zurich, London, etc) in the world.

The typical way of increasing income as a freelancer, after maxing out the hourly rate on your own is to start a development company. Partner with 1-2 freelancer friends, and start taking on bigger projects. Hire a small team of junior developers, and bill out their time as well. Grow. Start taking on fixed-bid mid-sized enterprise and government projects.

But this can be a very tedious and soul-crushing change, especially at the stage where you have only a few junior developers on staff: you will need to move from doing actual development work to reviewing their code, and handling "management and sales".

If that doesn't sound like something for you, perhaps instead consider:

* Moving to somewhere with even lower cost of living than Vilnius. Hell, move to the next beach-front villa somewhere in Asia every 6 months.

* Be more picky about accepting work - optimise for how much fun they seem to be, not only the hourly rate.