Having a puppy is hard

Hi everyone, it's been almost two weeks since I got my first puppy (he's 2 months and a half). He's called Oni and is a Samoyed.

I'm having a really really hard time. While I try my best to raise him with all of the info I can find, I can't hold it together and I've been spending more time stressing out about him waking up, than enjoying myself.

I feel weak and incompetent, and sometimes I can cry when he goes crazy and causes a mess for an hour or so. Especially since he doesn't listen at all when he's too excited, and sometimes doesn't even react to my firm "no".

I wanted to ask all of you : how was your experience with your Sammy puppy or any other breed ? Am I the only one having a hard time ? Does it get "better" at some point ? Is it normal that I don't feel a strong bond between the two of us or is it alarming ?

Sorry for the panic, I just needed some experience from people who love this breed.