I need a space with countable tightness which is not a Fréchet space. In this space, I am searching for a point with no deleted neighborhood consisting entirely of P-points.
(A P-point is a point $x \in X$ such that for every $G_\delta$ set $O$ containing $x$, $x \in \operatorname{int}(O)$ or equivalently $M_x = O_x$, i.e every fixed prime z-filter that contains $x$ is a z-ultrafilter.)
First note that in a space with countable tightness: $P$-point $\Leftrightarrow$ weak $P$-point $\Leftrightarrow$ Isolated point. So you are looking for a point for which every deleted neighborhood contains a non-isolated point. You can do a lot better:
Let $X$ be a countable maximal space (i.e. such that the topology on $X$ is maximal among those topologies which have no isolated points). This is an easy application of Zorn´s lemma, starting with any countable space which has no isolated points. Then:
1) $X$ is countable (in particular it has countable tightness),
2) No point of $X$ is a limit point of two disjoint subsets of $X$ (in particular it has no non-trivial convergent sequences and therefore it is not Fréchet),
3) $X$ has no isolated points (so any point has the property that you want).
Property 2 is not so easy to check, but you can look at "Applications of maximal topologies" by E.K. van Douwen, where he proves (see Theorem 2.2) that for crowded spaces (i.e. spaces with no isolated points) property 2 (which he calls perfectly disconnected) is equivalent to being a maximal space. In the same paper, van Douwen shows how you can construct such a space which is also regular (this is not a simple application of Zorn´s lemma anymore).
