New to hobby

Hi all, ive always loved space and ive began to take astrophotography more serious. Im only 17 and have a celestron Omni AZ 102 that i got a few years back. It does its job but I cant really capture planets or the moon in good detail. I was wondering if I could get some tips on what telescope I should get or what kind of tips can help me get better images. I also struggle to take photos of what I see I wonder how you guys take such good quality photos.