Thank you for the advice.
Actually this account is my second account which is devoted to posting about GIVEAWAY. My main account has often been curated by Steemmonster and I use the rewards for my daily needs. I also leave some of it for GIVEAWAY (if the Author rewards from the second account in a week are not enough).
I also intend to make 2 GIVEAWAY on my main Account (still need some preparation)