Implants are placed in the jaw and your denture is fitted with attachments that snap onto them. You still take it out yourself to clean it, exactly as you do now. That is the design rather than a limitation, and it is the part most people have backwards when they come in. If you have read about implant dentures that are fixed in permanently and never come out, that is a different treatment, and it is one I refer out rather than do here.
On a lower denture it can be as few as two implants. On an upper it is usually four, but many upper dentures do not need implants at all. An upper covers the palate and usually gets real suction from it, while a lower has nothing to seal against and sits on a ridge with your tongue underneath. That is why the lower is the one almost everyone struggles with, and it is where I would start.
Often we can use the denture you already have, as long as it has enough thickness where the attachments need to sit. If the material is too thin there it would fracture around them, and in that case a new denture is the honest answer rather than a sales pitch. Bring the one you wear and I will tell you which it is.
Start to finish it takes about six months, and most of that is the bone fusing to the implants rather than time you spend in the chair.