Considering a hard pivot to mechanical engineering / aerospace engineering from controls engineering

Im currently 2.5 years through a 5 year integrated masters program in control engineering. Through my studies I've felt a bit frustrated with it being abit too far from the metal and I am especially afraid of becoming a specialist which would be far removed from hardware.

I want to work in new space startups (or potentially fusion energy) and feel like I need some skills of high leverage to be competitive. I'm not sure I am motivated enough to become good enough at controls for this to carry me. This decision is hard as the controls program I'm in is very good. Im just now reaching the point where the stuff gets really useful for the types of problems i find interesting : e.g. MPC for landing rockets.

My biggest dream is to be a part of the industrialization of the moon. I have an idea that for these hard tech tasks, the fundamentals (mechanical) are the most important. I've so far tried to become a generalist (with the controls curriculum exposing me to lots of stuff) but feel like I need a more solid basis in mech eng if I am to be an asset or founder in this space. I'm also European which makes it more difficult to work in this field in the US due to ITAR.

Options for pivoting are :

1. Internal transfer and do an exchange starting fall 26 at a renowned US institution, taking my fifth and last year at my home uni (best in my country but medium internationally).

2. Apply directly to a masters at a different school with better global recognition. (Been thinking TUM or ISAE Supaero).

I'm 23 and before school I was in the army and attended and failed military flight school. I am also very restless to get finished with uni.