This is frustrating .............Does this Happen to Anyone Else??

Sometimes i get frustrated about all these new theories about islam, everyone has a different way they practice islam even some differences of how they do salah, when i reverted i have been doing things the way i read in islamic books and what i was taught, but now these new reverts have a total different way they look at things like niqab is obligatory and they have a few differences how they do salah of different interpretations of islam, i told my hubby i get so confused and lost and frustrated that i think i am doing wrong all the time. my husband said that i should just do salah, wear hijab, and stay away from what is haram and forget what people say because people have their own interpretation. i told my self i will only look towards the quran for answers but there are things that are hard to understand the meaning so thats when i go buy islamic books but once again scholars have different interpretations, my friend said just stick to one thing because allah knows my INTENTIONS.