Gaining weight

Since i had my daughter i have gained 40 lbs within two years. None of my clothes fit. Even my leggings are too tight on me now. I don’t know what to do. I have a bad sweet tooth. I need something sweet after a meal. I hate salad and i never liked vegetables so i cant do a diet with those. I dont want to gain any more weight, i need help. I am going to get a gym membership but i dont know how to make time to go. I work full time and i come home to my daughter and then i cook dinner and it’s already late by then. I need help, any advice or solutions to losing weight.