Welcome to the forum.
There have been a fair number of questions on the forum about oral sex, oral HPV, and throat cancer. The first media attention to these issue began several years ago, although it may have peaked 1-2 years ago.
The bottom line is that there are millions upon millions of oral sex events every year in the US, and yet only a few thousand cases per year of HPV-related throat cancer. So on the basis of simple statistics, the risk for any particular person is very, very low. In addition, even though there appears to be an association of oral HPV-16 infection (among the 100+ HPV types, that's the only one associated with throat cancer), I would stress *association*. It isn't actually clear that most oral HPV-16 infections are actually acquired that way.
You don't say how old you are, but I would guess that by age 30 around 70-80% of Americans have performed oral sex 100 or more times, typically on several different partners. Whatever the true numbers -- these are only a guess -- your oral sex exposure has been trivial, and it has been with a partner who is very unlikely to have had genital HPV at the time -- and especially unlikely to have had HPV-16.
I'm not aware of any data on tonsillectomy and the risk of oral HPV-16 or throat cancer. If anything, I would suspect it might lower the risk -- but maybe not, and certainly not by very much. It's probably a non-issue one way or the other.
In summary, this really isn't something you should be remotely worried about. It is a gross overreaction to plan on never having oral sex. If you and your partner(s) find it pleasurable, HPV is not a reason to exclude it from your repertoire of sexual practices.
For further reading, below are links to two other threads that discuss these and related inssues in even more detail.
Regards-- HHH, MD