Congratulations, you are doing very well
You were very lucky to get an internship from such an employer. As an intern he was able to give you an oportunity to prove yourself with little risk to the employer.
Now you are being given the oportunity to get some certifications, take advantage of them, they do not hurt to have. As far as what certifications to get, discuss this with your boss. Work with him to determine what certifications would be the best fit in the future of the company.
Next, get some quiet time and think about what and where you want your (professional) future to go. If your professional growth conicides with how your company will grow, then all is good to stay there. But if the company stays low tech and you are planning on earning more challenges and money than can be provided there, then you still might consider college along with the experience you will gain. A lot of places will take experience over a college degree, but it is often 10 years of experience in the specifice field they are looking for.
Remember, you will eventually be too experienced to be an intern.
Good luck in your future.
