Your must pray in the masjid with the congregation. As for the sunnah prayers, this is up to you. The more you follow the sunnah, the more Barakah you will get in your life.

I am a medical student preparing for post graduation exams. So is there any relaxation in terms of praying only fard prayers or praying at home only. Like a man that comes to the Prophet (saw) and said that I will do only the bare minimum and the Prophet (saw) said that the person will be in Jannah if he spoke truth.

Etiquette, Morals and Heart-Softeners | December 24, 2015 6:38 pm
Previous

My question is that as I am saying my prayer regularly and more than my friends why they are more successful than me? Sometimes religious belief got shaken off by seeing this that they are more successful than me by giving less effort, doing less hard work and saying no prayers at all? My another question is that why Christians and Jewish are more successful than Muslims? Even though they don’t believe?
Next

Sheikh, I still want to be muslim. I do believe in Allah but sometimes I don’t know what happens. If I turn to Allah again and become practicing, how will I know that Allah is with me or He has forgiven me?