For the plattforms, that also blocked me for a while. But it is easy now. You just get one account at a platform that offers a free broker account and supports buying the etf you want without extra fees.

Typical options in Europe: Trade Republic, scalable, Consors Bank.

Then the usual: Around 10K where you can access it directly, a small amount in an investment with percentage (scalable and trade republic both offer that, limit there is or was 50k), rest in one broad ETF like one that follows the FTSE all world (vanguard or invesco offer that, one is bigger, the other asks for less fees).

No affiliation, and I dont know whether being outside of the EU changes things. And yes, there is the risk that we are in a huge bubble now and it popping would at first significantly lower the money put into the etf. But you certainly do have access to vanguard etc.

Have a look now and at the latest this weekend you have this solved, hopefully forever.