Unfortunately, they need to be remade. There is no way to add more porcelain once the veneers are cemented.
Hello, in order to make a full evaluation of your case, ideally we need to see X-rays and take full set of photographs from different angles (and use lip retractors to see the gum situation). But a first step would be to do an orthodontic evaluation to see if your teeth could be repositioned and correct this way. Or if your lateral incisors could be lengthened with composite or porcelain veneers.
