First of all sorry your pet died second have a little funeral maybe put up a slide show and invite the family members over that liked it or was close to it and just say some priers(sorry if i spelt priers wrong).good luck with it
The last thing you need to think about right now is getting another pet. I'm afraid It's a grieving process you'll have to go through. the best thing you can do is reach out for support. I'm sorry to hear of your loss and grieve w/ you.
Don't waste your time on a memorial or funeral etc... you raised your pet with love and he/she died knowing that, your pet was blessed to have a warm home with caring owners. Just remember how much you loved your pet and move on, staying in the past will only bring you misery and no one wants that, including your pet!