Welcome back! You've lost the weight before so you KNOW you can do it again.
Looks to me like a lot of your "excuses" are related to the time it takes to cook a meal for yourself and then clean up afterwards. Perhaps my "quick one-skillet meals" might come to your rescue. When I'm in a rush - and haven't thought ahead to thaw meat for dinner, this is my go-to plan....
Note that I'm usually cooking for me and hubby so you could either just prep half as much or put half away in the fridge for another - even quicker - meal later.
Quick, one skillet dinner
8 to 12 oz frozen boneless meat of choice. (I mostly use a couple of chicken breasts or boneless pork chops) (0 g carbs)
1/2 onion chopped (or 2 tsps onion-powder) (4g carbs)
3 - 4 cloves chopped garlic (or 1/2 tsp garlic-powder) (4 g carbs)
Salt (to taste)
2 cups frozen vegetables of choice. I usually use broccoli, brussels sprouts or green beans because those are our favorite low-carb veggies. Any frozen veggies will do just pay attention to carb count per cup. (about 15 g carbs total)
4 TBSP (1/4 cup) of any commercial salad dressing that contains no more than 2g net carbs per 2 tbs serving. My favorite is bacon-flavored ranch but I've also used Caesar, blue cheese, asiago peppercorn, and creamy Italian. (4g carbs) ...yes, I KNOW one CAN make homemade salad dressings that are lower carb and "healthier" but, honestly, going to that much trouble to cut out maybe 2g carbs per meal just isn't worth it to me!
)
4 TBSP coconut oil, butter, or extra virgin olive oil. (0 carbs)
Place meat in MW on THAW (or low) for about 2 - 3 minutes. You don't want to thaw it completely, just enough so that it is easy to cut into small cubes.
While meat is thawing, chop onions and garlic.
Chop meat into approximately 3/4 inch cubes. Heat oil on medium in a skillet. Toss meat into skillet and brown it on all sides. (Takes about 5 minutes). Add onion, garlic and veggies to meat. Cover skillet with a tight fitting lid and allow to "steam" for about 5 minutes more till veggies are hot. There is enough moisture in frozen veggies to produce the necessary steam. If you start with fresh veggies, you might need to add a tablespoon of water.
Stir in salad dressing and continue heating for about 1 minute.
Eat.
From pulling the frozen meat out of the fridge to sitting down to eat takes me about 15 minutes total. Don't know about you but I can't even find my car keys, shoes, billfold etc and get into the car to head to McD's much quicker than that!
Only thing to clean up is the chopping block, skillet, plate and fork and knife....and, as a single guy, who's going to know if you skip dirtying a plate by eating straight from the skillet.
There are less than 30 g of carbs for two servings and You could make it even lower carb by skipping the onion and garlic and using other, lower-carb spices.