Sayyidi wa sanadi Shaykh Moulana Mohammad Taqi Usmani (may Allah preserve him) said;
‘The real objective is to gain Allah swt’s pleasure.
This is achieved via being steadfast on the good works (ta’at) and abstaining from all sins.
For the one who is doing these, there is no reason to be worried.
If there are short comings in these, then effort is needed to correct them and to make repentance.