This is very common. Both parents ko, at parents ng asawa ko ay ganito ang sitwasyon. Pati nmn kami mag asawa ganyan. So kung culture ang usapan, this is really acceptable. As long as it does not undermine her respect to you as an equal authority when it comes to family decisions.
Though naiintindihan ko din yung feeling ng insecurity na dulot ng cultural norms natin. Try to be more open minded. Para maging "good provider" ka, maging willing ka din mag swap ng roles na traditionally sa babae. Gaya ng household chores, or pag aalaga ng bata. These are also important task sa society at family, na underrated just because of the fact that it does not earn money to do these. You will only appreciate them pag wala na willing gumawa nito para sainyo.
And of course, if there is also an option to upgrade yourself, kausapin mo ang partner mo. I am sure your partner will understand kung gusto mo mag aral, magtraining, or mag start ng business. Being a 30+ yr, i am sure 4 yr sacrifice is nothing. Depende sayo baka in 2 yrs ma achieve mo na.
More powers lods.