Today I went through my db to look for some leaks and I found out that I lose the most money in SB. I think its a little worrying if I lose more money in SB than in BB. Correct me if I am wrong here? I am even more aggressive in SB. I checked my 3bet results and saw that these pots are not the problem. So I think I lose too much money in pots where I am raising limpers or calling raises. 

So I am looking for some advice what I maybe should check in my db or what I should be aware of/avoid when I am in SB. If somebody knows some common mistakes which occur in SB-situations I would really appreciate the help.

Thanks in advance for any help.