Advice for beginners?

[Unidentified~Unicorn]

So I have a violin and I watch a lot of youtube videos involving violin solos and learning the violin, but I don't know where to even begin. I have taken it to the local music store and someone tuned it, but it doesn't sound right. I don't know if it sounds that way because I'm not used to the sound or if it just isn't tuned right. I have already applied rosin to the bow and that is supposed to help with the sound, but it still sounds all funky and sometimes when I try to play, no sound is created. I just don't know if what I'm doing is right or where to even begin.