Seems that only practice will help me to become better ...
Exactly!
The number of burned/exploded items decreases with practice

As we are not able to assemble ourselves small elements (like 2x2mm MEMS IC with 12 pads hidden under it) we not make prototypes of PCBs I design. We start from ordering a production serie of 100 pcs.
This is different world than software were you can fix bug after bug. In our world if you not get the 100% bug free solution in the first shot you pay dearly for it.