Contact a local Lodge, explain the situation, and usually you can get a "letter in good standing" from your original Lodge (or Grand Lodge), "demit" (officially leave) your original Lodge, then apply for membership at your new local Lodge (and pay normal dues and so forth).
They will not make you go through the degrees again - but you can surely observe others if you like, and the new local Brethren can help you get caught up on all of the modes of recognition and so forth.
People "going away" from Masonry for decades, and then coming back, is not uncommon at all, and nobody will look badly at you for it. Especially if you say "I felt like my degrees were rushed, and I'd like to learn more".
They will not make you go through the degrees again - but you can surely observe others if you like, and the new local Brethren can help you get caught up on all of the modes of recognition and so forth.
People "going away" from Masonry for decades, and then coming back, is not uncommon at all, and nobody will look badly at you for it. Especially if you say "I felt like my degrees were rushed, and I'd like to learn more".