Context : I work in two companies, and I'm thinking about leaving the first one to have more time to focus on learning new technologies and a new language for the foreign country I'm planning to live in at the start of 2020.
I'm currently working 3 days per week in this first company since a year and a half, but I've been working here for 4+ years in total and never asked for a raise before (guess it was time to wake up).
If I was to leave the job about 2 months (maybe less) after asking for the raise, how appropriate would it be ?