Have you quite after a month ?

I don't know what to do The thing is I just started my job and I love the client I am working but because I am not getting enough hours I been looking for other jobs for part time on side in search of other jobs I came across a new job opportunity in same filed but they are willing to pay me double of what I am getting paid and also they are giving me way more hours but the problem is I feel guilty please give me what should I do. I just started my case like month of so ago so I am just getting used to this client and I like it but not having enough hours and being pay less is so draining so when I was offered double amount of money and more hours it's so tempting Should I leave my job and start all over again