Ciao Canterina,
I can �t think of an equivalent expression. Possibly:
"Tidy up your ideas!" (As you suggest.)
"Get your ideas in order!" (Put your ideas into a more sensible arrangement!)
"Get yourself sorted out!" (Solve your problems and lead a �normal � life!)
"Straighten up your ideas!" (Improve your bad attitude!)
"Smarten up your ideas!" (Improve your bad attitude.)
"Think straight!" (Stop thinking in a confused fashion!)
"Put your house in order!" (Make the changes necessary to lessen your personal problems!)
"Put everything into apple-pie order!" (Arrange everything very neatly and tidily!)
I hope that this helps.
Les