Lost most money from pairs. should i not play pairss even top pair ag

[NiR]

i have around 15k hands and it shows that i have lost the most money from pairs. should i just stop playing them? even top pairs top kickers. should i not even play tptk aggresively out of position? i was a winning player in 25nl but i got whooped bad in the 50nl lost around 700 their so i am going back to 25nl to get my money back before moving again. so i want to make some changes of the way i will play in 50nl . i want to imbed it in the 25nl as well. so should i just stop playing top pairs aggresisvely? or not at all.. just wait for big hands that i win most with such as sets or straight or house or flushes? some help guys from some 50NL killers.