Did I receive an invalid baptism?

[pianoforte54]

I joined the Catholic Church in 2013 at Easter Vigil. I was baptized by immersion when I was 12. I was told that as long as the correct words were used My baptism was valid. I wad on dunked once and not 3 times ad it was done in the early church. I am very concerned that my baptism is not valid and reading where some Protestants had condition baptism when they joined(I.e. Scott Hahn) I am wondering if I could have a conditional baptism performed? I am beside myself that I might not really belong to the Church and have greatly sinned by taking the Eucharist unworthily. Please let me know what I should do.

 

[Fr.Charles_Grondin]

For the purposes of validity it does not matter if the water is poured or the person is immersed once, twice, or thrice. All that is required is the pouring of water or immersion and the Trinitarian formula.

The Catechism of Trent, The Sacrament of Baptism:

It is a matter of indifference whether the ablution be performed once or thrice. For it is evident from the Epistle of St. Gregory the Great to Leander that Baptism was formerly and may still be validly administered in the Church in either way. The faithful, however, should follow the practice of the particular Church to which they belong.