first timer trying to get into the hobby..

bought a refurbished Canon EOS 700D for around $200, Pentax Super-Takumar 35mm lens, as well as a shitty $5 M42 to EF adapter and some flash cards, totaling everything up to around $300. did i fuck up?

planning on getting a Takumar 200mm telephoto lens to do some astrophotography down the line