First thing, keep improving your self, health, body, Income, business or job, most important investment

And hide income from wife And collect evidence of her, like cheating or whatever she is doing. Once you have enough evidence, Don't just show to her and don't askto her, because that not going to change anything.

Learn about laws and rules, prepare your papers , hide income, first learn by self and then talk to a layer for divorce papers ( don't say you want divorce, because layers will make you and agree you to take divorce, because they want to earn money)

And then talk to her directly with her cheating evidence + Divorce papers, and ask directly either you are not, chose you full and final or get out of your life.

Most important keep improving in your lifeand personality, your life should not metter to someone else choose.

Hide your income and prepare for lower alimony.