what is the best way to study for this difficult exam

ive taken the exam multiple times and just keeps getting more harder and I keep failing tremendously . but for me its not the test im worried about its the career itself , bc since I haven't been in school in 3 years where I did my undergrad in ny since getting my undergrad it so much to remember and for me not being in action with the field bc jobs want more experience then your degrees unfournetly it made me think how long can a therapist last in today's age , I know most places ( state wise ) have more jobs lined up then others , and you have to keep up with your credentials and keeping paying so much money to do so .

the field is known , but so little that its really not known , but it is more growing in the research end of things even tho its been around for decades .

so is it worth it , going to masters , phd ( even tho I know its optional for that )

why am I still the same weight but when people see me say I lost weight and look liked I been working out but I haven't been in the gym yet.

ive been trying to lose weight for many year, its been a crazy battle , and especially when the pandemic hit , well you know how things were back in those days . bc when I was diagnosed with heart failure in 2023 when I was 23 , I lost the confidence to get back into the gym bc of fear of what would happen to my heart and all . but as I been to many doctors appointments and all my confidence is slowly building up, ive been trying to cut down a lot things and there foods and drinks I really dont drink or eat just out of habit . so my question again is this because so many people said this to me , why am I still the same weight on the scale which is 275 , but when people see me they say wow u look like u loss weight and or been working out even tho I haven't been to the gym?