After reading in Al-Kafi that believers face more trials than others I wonder that if my life feels blessed and I fulfill my prayers and obligations without many troubles, does that imply I have weak faith and am unworthy of Allah's tests?
As far as the believer Is fulfilling his duties and avoiding sinful acts and thanking Allah (SWT) for His bounties, he will remain blessed in this life and hereafter. Trials are best known to Allah (SWT) but if you don't have any hardship, it does not mean that your faith is worthless as far as you are worshiping Allah properly, avoiding sins and thanking Allah (SWT).
Wassalam.