u/Impossible-Muscle424

For those who use dailyintegral.com, may I know the level of integrals? I'm currently self studying Calc II but I still cannot solve Easy and Medium Integrals without hints, sometimes with hints I also can't solve them. Derivative on the other hand I can usually solve Easy and Medium. Is this normal for me to can't integrate or I'm too bad?

My sulcata is around 1 year and a half already, but only around 14cm to 15cm. I feed estimate 5 to 8 pieces of hibiscus leaves or mulberry leaves daily at night. I also add in 3 large low starch mazuri pellets, sprinkled with calcium powder. I tried to add to let it eat more but it just walks away. I give it sunshine daily for 10 mins before school then put him back. Any tips to let it grow bigger faster?