Python script, twitter bot for retweeting specific tweets – Twitter API

I made a Twitter Bot for retweeting, following and unfollowing people (when max reached), but when I thought that my bot was fully operational Twitter Blocked me.. That’s because if wansn’t checking if my bot already retweeted a tweet but I had a try/except block. So I was making a lot of api calls to retweet… I was wondering how I could check if I already retweeted this tweet ?
I thought of looking up every user of had retweeted the tweet and if my username was in it, passing to the next tweet, but it’s not very effective. I can share my code, and feel free to ask for any clarification.
Thank you,
Kajpio
PS: I’m using tweepy to interact with the API !

Update, here is a part of my code, just the part checking for retweet:

loginToTwitter()
query = 'a string'  
tweet_cursor= tweepy.Cursor(api.search, query, result_type="recent").items()
print("Searching")
for tweet in tweet_cursor:
    tweetText = tweet.text.lower()
    if "rt" in tweetText:
        if tweet.retweeted == True: #It return me each time a false boolean but then I get the api.code 327 from twitter 
            print("already retweeted")
            continue
        try:
            api.retweet(tweet.id)
            print('Retweedted')
            time.sleep(2)
        except tweepy.TweepError as e:
            if e.api_code == 327:
                print("Tried but tweet already Retweeted" )
            print(e)
            time.sleep(0.5)
            continue