Weight loss

Az

I loose weight very very easily, its so hard for me to gain it.. i had been tracking my macros and i had gained 11 pounds in 2-3 months.. I didn’t track my macros in just about a month i lost 4-5poundssss!! 😥😥 im so sad im 121 and im 5’4 i was 126-127

What helps to gain weight..?anyone that struggles as well what has helped aside from tracking macros?