Just as NO big project can be perfected in a day, neither can a christian. When we come to Christ just as we are, the work begins.
As the Holy Spirit works in us, we are metamorphosed, we change, we are remodelled, we are TRANSFORMED.
It is a gradual process, BUT it is evident for all to see (Believers and unbelievers alike). The required time and speed of our transformation will depend on our cooperation with the Holy Spirit and our sincerity in dealing with our struggles.
No matter how perfect we may look, we all have our struggles: gambling, pornography, envy, sexual immorality, drunkenness, idolatry, gluttony, pride, lying, murder, covetousness, anger, gossip, bitterness, blasphemy, persecution, corrupt conversation, strife, unforgiveness, selfishness … the list is endless.
look inward and let the Holy Spirit carry out appropriate maintenance and when you think you have been adequately maintained, do not rush into self-righteousness because you might need renovations in order to be effective in this ever evolving world.
[ For whom he did foreknow, he also did predestinate to be conformed to the image of his Son, that he might be the firstborn among many brethren. Rom 8:29]