please help me,, im 23 this year, 160cm,, my weight is only between 38-42kg,, i need some weight,, but i donno how,, what is the best solution? please help me,,

guys,, i'm 160cm and only 41kg,, i really need helps

41kg 159cm help me

is drinking milk everyday (morning+night) will add some weight? i dont like to drink milk that rasa lembu one,, i only can drink HL choc milk,, is it ok?

need to do work out? dont work out will lose weight?

meal 1 - drink a cup hl choc milk + 2 slice with butter - 7-8am
meal 2 - nasi lemak/ nasi goreng/ mee - 10-11am
meal 3 - rice + egg + vege + (fish/chicken/meat) 12.30-1.30pm
meal 4 - some biscuits or kuih2 with tea 4-5pm
meal 5 - rice + egg + vege + (fish/chicken/meat) 7-8pm
meal 6 - drink a cup hl choc milk + 2 slice bread with butter 12pm-before sleep

ok like this?

i'm student btw

weight only 41kg with 159cm

bmi only 16.2

my goal is between 50-60kg

before this i eat once/twice a day

3 days a week jogging for an hour enough?