re: How much protein should I be taking in?

You're likely doing things right with what you're doing already. Do you know how much protein you are consuming? That's the only way to know for sure, but if you were over-eating protein to the point of being in an average caloric surplus, I'd say cut back then and only then. To me it's better to put a focus on either 1)emphasizing strength/muscle building, or 2)fat loss, but you can accomplish both at the same time.

I'm the kind of person that has to track calories and macros, etc, because I get dishonest and unrealistic with myself if I don't use the objective data. If you can get away with "eye-balling" things then don't worry about logging and tracking such things, but be honest with yourself. If you really can't figure out where you are or what's going on diet wise, just start tracking to figure things out.

With lifting AND rowing...at 64? You definitely want MORE protein than LESS, so I'd keep protein higher and cut back on fat and/or carbs first to keep a deficit. Make sure your hydration/sleep/rest/recovery is sufficient and trust the process. If you're that new (few months) to lifting and rowing, then you don't need to worry about over-eating protein I'd imagine, you need it for recovery. Just focus on getting stronger.