Please i have a few question on the merits system
Is it possible for a user as a newbie to send merits?

 Yes it's possible if you have sMerit's but before you send a merits you need to earn a merits first, because every time you get 2 merits then you receive also 1 sMerit's. Your sMerits is the only merit you can spend or give to other users.
Based on my observation you came here last January 14 2022 which is you are 7 months old here in forum but did not get any merits because in your post history all I saw is from bounty I did not see a good quality post deserve merits. So if you want to give merits to others then you must gain it first.