Yep definitely psychological
You obviously want to tower over them, we all want to be big boys, it’s in our nature as men
Most doctors will do max 8 cm femurs + 6 cm tibias, max
I’m about the same height as you, and the max with limb lengthening is about 6’2 or 6’3 at most
People in the Netherlands have the average height of about 6’0 to 6’1, so you’re already beat the average height there
If you want to try to hit 20 cm... good luck... and may disable you than make you taller. The reason being is your muscles/bands/etc will be stretched, and you don’t want to exceed what it can’t hold
If you think your girlfriend is the one to settle with, you’re in for a bumpy ride
You have to accept that there’s always someone taller than you (I accepted that as well)
And if you’re consantly surrounded by people who are taller than you, you’re setting up yourself to fail
And with people who are constantly destroying your self esteem inch by inch, literally, is not a good place to be surrounded by - it’s toxic
I’d recommend
1. Trying femurs first, feel it out for a year, things can change
2. Distance yourself from the toxic people who demean your height
3. Check if you really want to increase tibas after 1 year of being 6 ft tall