No worries- we were all noobs at one time.... sometimes still are lol
Sounds like a bad passenger side ball joint. Jack the front passenger side up, grab the tire at the top & bottom & try to wiggle it vertically... If it wiggles, look on the inside where the lower control arm connects to the spindle... If the fulcrum of the wiggle is that connection; then it is a bad ball joint.
Aside from that, put it on jacks and start checking that all the bolts are tight, and nothing else shakes rattles or rolls... If the thump/clunk is THAT loud, it will likely be pretty easy to fig out whatr it is when you look at it.
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