You know, EENS, confirmation is not an essential sacrament, and it's OK to have it put off. If you can't get it in the traditional rite at the present, it's quite OK to wait till you're 18 and are on your own/have a car and can drive some, etc, and can thus go to the Mass that you desire, where you'll be able to be confirmed.
I agree, Eric.
You should certainly go to the SSPV, even if you don't agree with their views on sedevacantism. The indult is really just a Novus Ordo mass in Latin. You don't know what you might be getting. A doubtful sacrament is not a sacrament.
SSPV are not sedes, they are "de facto" sedes. I believe that it is left up to the conscience of the individual priest whether he is "una cum" or not. The official position of the SSPV is simply that it is at least a debatable position that the post-conciliar pontiffs are true Popes. Other than this minor quibble, I know nothing about the SSPV. I will say that Fr. Jenkins is a very holy priest, very wise, and that you may be assured of getting the "whole traditional faith" if you go to him. The de-facto sedevacantism is a problem, however, and whether you can or cannot receive the sacraments there is up to the dictates of your own conscience, there's nothing we can do to help you.
The Indult is also most likely the whole traditional faith. Increasingly, Indults are indeed offering confirmation in the Traditional Rite, due to the cooperation of local ordinaries. If you are not a sedevacantist, and you believe that the Pope is the Pope, I would recommend going to the Indult. However, the Indults can occasionally be a little modern, so go first, and see how it is. If it seems "trad" then stick with it. If the homilies are Novus Ordo and the liturgy seems not to be done correctly, then maybe it isn't the place for you.