If you tend to stand with a "swayback," developing awareness of the opening at the front of your hips is especially important. In Tadasana (Mountain Pose), practice lifting the ASISes, moving the tailbone down, and lifting the lumbar spine. Putting a belt around your waist, as you did in Warrior I, may help you increase your awareness of your pelvic alignment in this pose too.
I fortunately remember the nutrition label for many foods. If it doesn’t have a label, I remember what I’ve studied. It just sticks mentally and saves me time as I don’t have to input my calories via tracking. I use to track calories (started like 5yrs ago) which did help me get a better understanding (started to remember within 6m) of which foods had what and at what amount.
Reaching failure matters because tension matters. Failure is when the muscle cannot generate anymore force. Which means one applied (worked out) enough tension through the muscle to just want to give up. And guess what? Carrying groceries can do this for some. Why? We are all at different strength levels. So don’t worry about other people and what they can or cannot lift. I say this because FAILURE can be achieved with either light weights or heavy weights.
Remember my special answer: here it is… MOUTHTAPERS exist. People out there will tape their mouth closed during sleep so that they can breathe their nose. Even during the day sometimes. Why? Because the nose is directly connected to the diaphragm while the mouth is connected to the chest. Sure, increase chest mobility and your lungs may be able to expand more which will allow more air to be held, BUT HOW CAN YOU HOLD THAT MORE AIR IF YOUR DIAPHRAGM is weak? You won’t. So everything I just talked about must be done through the nose. Notice yourself breathing with your mouth and SWITCH right away. It takes work and energy. How you breathe during the day rolls over to how you breathe during the night.