Are dental implants a viable option for me?

Q.
I am thinking of having implants, however first I think I would need to lose my four front upper teeth because they are crowns and becoming wobbly. I do not want to have an upper denture because my dentist made me one for the back teeth and I am constantly heaving and feel as though I am choking. I have a lower denture which has taken some time to get used to and am also thinking of having at least 8 implants on my bottom jaw. I am petrifyed of the dentist and get extremely anxious to the point I have panic attacks although this is not all the time. I would like to receive further information and pricing. I am 43 years old and my teeth are not in great shape. I have only 8 teeth on the upper jaw and 6 on the lower jaw. If you do not have immediate loading will you have to go without teeth during the healing process and how much would i all cost and can you pay in installments or is that unacheivable because I currently am a mature student.