Should I start with cutting or bulking?

New to MacroFactor and wondering where to start. I’m currently overweight and totally out of shape. I’ll be lifting 3x per week and mixing some cardio in as well. I have about 45 pounds to lose. I feel like I need to put on some muscle to get my metabolism back up (not a lot of muscle mass happening at the moment), but with being overweight I’m not sure if I should start with a bulk so that my cutting calories won’t be so low, or just go right into a cut. Right now it’s showing me at 1025 cal/day to lose 1.5/week. For reference I’m very short which is why my calories are so low (4’10” and currently 155lbs, sedentary). Just trying to figure out the best goal to start out with to set me up for success.