Is it time to get a new dog?

i lost my dog is early september, it broke my heart when it happened, i still regret not spending enough time with him, i got so caught up in other stuff that was not even worth anything and had no meaning that i let spending time with him slip behind, i Had him since i was about 4, i grew up with him and loved him more than anyone else, it's been months after and my father and i have considered getting a new dog, my parents divorced in november, which i have no problem with, recently my mom came along with us to a humane society just about 20 minutes from my father's place, i've been totally open to getting a new dog, i've missed having someone to talk to, cuddle with, hug and go on walks with, we were looking at all the dogs there, there was a few i liked, we decided to take one outside we interested in to meet, as soon as we were outside, i had such a bad gut feeling, i've been having alot of struggles with my own self, i've felt so lost for years, i've been depressed, but i've gotten better since last year, i've just been overall confused with who i am, i want to take more chances and stop being so fearful of things, i've always been afraid to do things. and so much more, my father and i are trying to get our house together ( redecorating and such) and he'll be going in for surgery in early june, and leaving for 5 weeks in summer, i just felt like it was bad timing, and still do, but i'm not sure if a dog would help me cope with everything, i want to start brand new in life, with everything, and i was thinking having a new companion would help me push myself through all this, into new territory , i just don't know if i should wait to straighten things out, or push myself. and i'm afraid if i keep waiting, no improvement will happen. we could be just fine with a dog, but i'm still not sure if it's too soon? i haven't even walked into my backyard in months because i remember my dog always being outside, his dog house is still under my bedroom window outside where it always was. i refuse to reuse anything of his with a new dog, although my dad wants to, to save money, which i understand, but i feel so umcomfortable with. my father wants a large dog, but my mother thinks we should go for something small, easy to bathe and bring along, our dog who passed was a pretty large dog, but i'm totally fine with either a large or small. any suggestions would be helpful. xoxo