Pardon Pennsylvania

Hi. I am writing because I have some questions regarding applying for a pardon in the state of Pennsylvania. I was convicted of two DUIs that occured 2 months apart in 2016. I was 19 years old at the time and made some terrible decisions. Both of these offense were for marijuana. I was sentenced to 6 months of probation for the 1st offense. I was sentenced to 6 months house arrest and 5 year probation for the 2nd offense. My case has been closed as of April 2019 due to good behavior. I have made great strides to turn my life around since then. I have not gotten in any trouble since these events occurred. I am now 23 years old. I completed my bachelor's degree in May 2018. I am currently completing my master's degree in Speech-Language Pathology. I intend to graduate this program in 2020. Despite my past I have been able to do very well academically earning the respect of my professors. However, I am concerned that these events will prevent me from exceling to my highest potential in my career path. I know that the only way to get these expunged from my record is to apply for a pardon. I can see this can be a very complicated and long process. My questions are: 1.) Do I even have a chance at getting pardon to put the time and effort into this process? 2.) I see I do not need a lawyer in order to do this but does having one help my chances? 3.) Are there lawyers out there that are actually affordable? As a student I have a very limited income as it is. I do not want to ask my family for assistance in this matter, I want to do this on my own. I have caused so much stress due to this happening I can not put them through anymore stress or financial burden. Thank you!