I may not be able to help with the losing weight part. Being 165 most of my life never had to worry about that

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I can help with eating healthy
Avoid prepared foods at all costs, whether its lean cuisine or canned beans,
Use dry beans over canned,
Bread , read the ingredients and avoid the bread with high fructose corn syrup.
Look for the more natural breads or make your own,
If make your own cut the white flour with whole wheat, I like to use 50/50 white/wheat.
Look at sodium levels on everything.
Sodium will cause you to retain water=weight.
Average persone can have about 2500mg/day,
Health issues/restrictions try to keep it under 1500mg/day
Veggies? Look for diuretics, like asparagus over celery.
Look for healthy foods you can use as fillers, so you can still have your steak, just a smaller portion and still have a full plate.
For pasta, look for dreamfields brand, it has a type of carbs that's more easily broken down than reg pasta, and can't tell the difference in taste, for sauce with that pasta, avoid the jar stuff, make and jar your own.
If your going to be out for the day, pack a snack/meal so your not forced to eat outside food.
You don't have to eat like a bird, but does take some work to eat healthy
Good luck