sen kendine cok iyi bak.....does this mean "take good care of yourself"

How do you say

" I have alot of work"

" I am very busy with my work"

yes, you are right, sen kendine çok iyi bak means take good care of yourself (I dont know if in English exists something like "a lot of care" ..)

for the second one

çok işim var/ işimle çok meşgulüm

my try

yardimin icin tesekkur ederim.

Yes in english we say "take good care of yourself"

we dont normally say "take alot of care of yourself" but rather "take good care"

ben de çok teşekkür ederim