[Python] Post tweets using tweepy and Twitter API V2

I need my Twitter app to tweet some information, but something is going wrong. First, I created an app and tried this code to test credentials:

auth = tweepy.OAuthHandler("CONSUMER_KEY", "CONSUMER_SECRET")
auth.set_access_token("ACCESS_TOKEN", "ACCESS_SECRET")
api = tweepy.API(auth)
try:
api.verify_credentials()
print("Authentication Successful")
except:
print("Authentication Error")


And got "Authentication Error". Then I tried to write a tweet directly using

client = tweepy.Client(bearer_token, consumer_key, consumer_secret, access_token, access_token_secret)
client.create_tweet(text="********")


And now I got "tweepy.errors.Forbidden: 403 Forbidden" What should I do?

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