1) Because this is Beginners I'm assuming this i a small buy in tourney, don't pull moves like this too often. Too many calling stations. If you do do it you need to raise preflop. On the flop you want them to put you on AQ or KQ, with no PFR they wont believe you.

2) You have an open ended straight flush draw to a possible nut straight or first/second nut flush. For half your stack and probably all of it, its a folder.