If you want to improve your gym performance you should consider getting a personal trainer imo.
IF might not be for you if you get stressed out about it even when it’s something close to your natural eating pattern. You didn’t mention what you’re eating but if you feel low energy you might need to eat more whole foods.
Just some thoughts.
Diet and CICO still really matter, you did not mention what you are eating during your feeding window, but if you are pounding refined carbs you will not get the benefits nearly as acutely as someone who is sticking to all natural foods. Like rice, potato, fruit no problem but pop or refined flour or refined sugars are just putting your insulin through the roof again and that means you will take longer to get back to fat burning, which could be why you have low energy for the last bit. Your body can use glucose or ketones, and insulin restricts ketone use is a handy way to remember.
Whatever you need to do to be successful is what you need to do, but I would not fixate on the end result as much as the process. With IF and with your workouts, you will see progress if you are working out 3-4 times a week and doing 16/8 with a mostly healthy diet. 2 weeks is hard to really gauge anything as there is usually a lot of water weight and you need to work through the visceral fat before you get into the belly fat. For sure if you are in a calorie deficit and low insulin your body will happily eat the fat it has stored for just such an occasion.
Also, you need extra water and extra salt, maybe even do some bone broth before your workouts, wont touch insulin or affect your fast, but get some extra electrolytes. Like I wish I could find the motivation you have for the extra working out, I think you are on the right path and if you are consistent for 6 months, you will be here posting a great success story for sure.
IF shouldn’t be this hard, it should be easy as the time passes and it should work with your routine.Also, are you a woman? Cause we need to do different types of fasting, according to our cycle.
If you are not a woman, I would recommend you to try increase your protein intake, as well some good fats.
Something that helped me was Dr.Mindy on Youtube, she is NOT a medical professional, but she gives great insight, and she has a lot of videos anwsering a lot of question that can come up!
Id up it to 18/6. Get some electrolyte capsules. Apple cider vinegar is great for energy, I take them in capsules as well 4 times a day.
Flavored water helps. I like slimfast intermittent electrolyte packets. The Red one tastes just like red kool-aid and it does trick your brain, I drink these when I feel most hungry. Don’t give up just find what works for you.
Eat enough calories during your eating window.
Try 16:8 as it’s the most common.
If you’re working a daytime job or school you could eat from 10am to 6pm, then fast from 6pm onwards to 10am.
One thing to be sure of is that while in the eating window of time, you’re eating enough. Eat adequate protein, fats, and carbs. Don’t run your body into the ground.
While fasting drink plenty of water, it’s key.
If you need to take a break, take a break. It’s a marathon, not a drag race.