Looking for follow set of Grammar in discrete math $E\rightarrow Tx$ 
$x\rightarrow +E|$empty string
$T\rightarrow (E)|intY$ 
$Y\rightarrow*T|$empty string
I had hard time looking for follow set for $T$ and $Y$. Cause it will trace back to each other. If I do $Y$, then it will trace back to $T$ when $T$ trace back to $Y$. It is a loop. So how do I look for follow set under this circumstance?
Thank you.
 A: I hope it can help you.

FOLLOW function
FOLLOW(A) is defined as the set of terminal symbols that appear
  immediately to the RHS of A. 
  
  
*
  
*for the start symbol S place  in FOLLOW(S).
  
*if there is a production  $A \to \alpha B\beta$ then everything in FIRST$(\beta)$ without $\epsilon$ is to be placed in FOLLOW(B).
  
*if there is a production  $A \to \alpha B\beta$ or $A \to \alpha B$ and FIRST$(\beta)=\{\epsilon\}$ then FOLLOW(A)=FOLLOW(B). that means
  everything in FOLLOW(A) is in FOLLOW(B).
  


$E\to TX \\
X\to+E|\epsilon \\
T\to(E)|intY \\
Y\to*T|\epsilon$
$E\to \underline {\text{T}}\text{X}\tag{ 2}$
FIRST [X]$-\{\epsilon\}$ $\subseteq $ FOLLOW [T]
{+} $\subseteq $FOLLOW [T]
$T\to (\underline{E})\tag{ 1,2}$
FIRST [ ) ]$-\{\epsilon\}$ $\subseteq $ FOLLOW [E] 
{),\$} $\subseteq $FOLLOW [E]

$E\to \text{T}\underline{\text{X}}\tag{ 3}$
FOLLOW(E) $\subseteq$ FOLLOW(X)
$\bullet$ $\epsilon \in FISRT(X) $ so :
FOLLOW(E) $\subseteq$ FOLLOW(T)
$X\to \text{+}\underline{\text{E}}\tag{ 3}$
FOLLOW(X) $\subseteq$ FOLLOW(E)
$T\to \text{int}\underline{\text{Y}}\tag{ 3}$
FOLLOW(T) $\subseteq$ FOLLOW(Y)
$Y\to \text{*}\underline{\text{T}}\tag{ 3}$
FOLLOW(Y) $\subseteq$ FOLLOW(T)



*

*FOLLOW(E) $\subseteq$ FOLLOW(X)

*FOLLOW(X) $\subseteq$ FOLLOW(E)


FOLLOW(X) = FOLLOW(E) = $\{),\$\}$



*

*FOLLOW(T) $\subseteq$ FOLLOW(Y)

*FOLLOW(Y) $\subseteq$ FOLLOW(T)


FOLLOW(T) = FOLLOW(Y)


*

*{+} $\subseteq$ FOLLOW(T)

*FOLLOW(E) $\subseteq$ FOLLOW(T)


FOLLOW(T) = FOLLOW(Y) = $\{),\$,+\}$

(1) FOLLOW(A) $\subseteq$ FOLLOW(B)
 : FOLLOW( B ) contains at least the FOLLOW( A ) as a subset.
(2)First and Follow Sets Example
