u/Dangerous-Split2434

I started making patterns about 2 months ago focusing only on pants and I’ve made now 4 different drafts with small edits inbetween each one. every time I find something I need to change I understand how I should alter the 2d pattern to get the chanhe I want but I never know the extent that I should edit a measurement and also every time I want to test if my single change works I make a whole new garment from cheap random fabric. is this the proper process on getting a good pattern or am I making it uneccesarily long because I’ve been getting pretty frustrated when I make a whole new garment 4 times for it to still not fit properly.