Looking to get a puppy, what do I need to know?

Hi, I've never had a dog before but I'm looking to get a puppy. I'm 25-years-old and I would say I'm somewhat financially stable (I have a secure, long-term job but nothing too high pay, still entry-level). I also work from home, so I do have the time to put in for puppy phase – but I've still heard it's harder than we think.

I've always wanted a dog but I know almost nothing about taking care of a dog, except that puppies are hard work. I'm wondering if it's worth getting a puppy. I would adopt a bit older dog if I was flexible on breeds, but I'm kind of set on getting a maltipoo.

I'd love any advice for a first-time dog owner looking to get a maltipoo puppy. I'd like to put the effort into raising a puppy, but asking for realistic expectations / things I should know.

I'm also curious about schedule… what age is the worst for puppies? What age is it normal to get the puppy at? When should I start potty training / etc. What are best practices to implement early??

Thank you so much!