My advise will be for you to start with the translation and slowly you will get into the tafsir mood. Yes al.org is good and trustworthy.
The tafsir i will recommend for now is enlightening commentary by the groups of scholars. PDF is available online. https://www.al-islam.org/enlightening-commentary-light-holy-quran-vol-1
As I said above, start with translation. Try to spend like 15-30 minutes in a day. Then you will move forward progressively insha Allah