> words sound so much like old english/germanic.
The relationship you are seeing was discovered nearly two centuries ago, and has been thoroughly studied since then [1].
> there have just soo many of them and every region has their own dialects.
If linguistic diversity is the measure you are interested in, Papua New Guinea [2] and Sub Saharan Africa [3] are orders of magnitude more diverse that Europe and South or East Asia.
1. https://en.m.wikipedia.org/wiki/Indo-European_languages
2. https://en.m.wikipedia.org/wiki/Languages_of_Papua_New_Guine...
3. https://en.m.wikipedia.org/wiki/Sub-Saharan_Africa#Languages...