Just because you’re not happy with your salary doesn’t mean it’s the same opinion. In order to achieve your goal and increase in income, you must convince him with strong arguments. You will definitely not succeed when you will tell him what they did where and how many installments you have to pay each month.
Negotiating a salary is a real skill. Definitely do not show when to prepare for them. You invite how you use the argument. Try n test if your argument before fem me succeeds.
He liked it: never pretend to go to the competition when vm f nepid. From that moment on, you will suspect him. He will be very careful not to get any information. What can you help your competitors?