Victory at Granada on Sunday sees Celta secure their Primera status for another season.
Giraldez said: "The club's brave decision and the brave proposal have turned out well. Let's think, as soon as possible, about generating a project for next season and being a little calmer and not suffering every weekend.
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"We deserved not to reach the last day like last year and be on the wire again.
"I think we have done well to save ourselves before and there were very good moments. I am very happy for all the fans, for the coaching staff obviously, for the squad and also for the club. I was never afraid of relegation."