I got my horse when I was 12 and I was already 5'9-5'10, thankfully I stopped growing when I hit 5'11" but my horse is about 16.2 or 16.3hh, TB.
1	I	I	PRON	PRP	Case=Nom|Number=Sing|Person=1|PronType=Prs	2	nsubj	2:nsubj	_
2	got	get	VERB	VBD	Mood=Ind|Number=Sing|Person=1|Tense=Past|VerbForm=Fin	0	root	0:root	_
3	my	my	PRON	PRP$	Case=Gen|Number=Sing|Person=1|Poss=Yes|PronType=Prs	4	nmod:poss	4:nmod:poss	_
4	horse	horse	NOUN	NN	Number=Sing	2	obj	2:obj	_
5	when	when	ADV	WRB	PronType=Int	8	advmod	8:advmod	_
6	I	I	PRON	PRP	Case=Nom|Number=Sing|Person=1|PronType=Prs	8	nsubj	8:nsubj	_
7	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	8	cop	8:cop	_
8	12	12	NUM	CD	NumForm=Digit|NumType=Card	2	advcl	2:advcl:when	_
9	and	and	CCONJ	CC	_	13	cc	13:cc	_
10	I	I	PRON	PRP	Case=Nom|Number=Sing|Person=1|PronType=Prs	13	nsubj	13:nsubj	_
11	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	13	cop	13:cop	_
12	already	already	ADV	RB	_	13	advmod	13:advmod	_
13	5	5	NUM	CD	NumForm=Digit|NumType=Card	14	nummod	14:nummod	SpaceAfter=No
14	'	'	NOUN	NNS	Number=Plur	2	conj	2:conj:and	SpaceAfter=No
15	9	9	NUM	CD	NumForm=Digit|NumType=Card	14	compound	14:compound	SpaceAfter=No
16	-	-	SYM	SYM	_	17	case	17:case	SpaceAfter=No
17	5	5	NUM	CD	NumForm=Digit|NumType=Card	18	nummod	18:nummod	SpaceAfter=No
18	'	'	NOUN	NNS	Number=Plur	14	nmod	14:nmod:to	SpaceAfter=No
19	10	10	NUM	CD	NumForm=Digit|NumType=Card	18	compound	18:compound	SpaceAfter=No
20	,	,	PUNCT	,	_	2	punct	2:punct	_
21	thankfully	thankfully	ADV	RB	_	23	advmod	23:advmod	_
22	I	I	PRON	PRP	Case=Nom|Number=Sing|Person=1|PronType=Prs	23	nsubj	23:nsubj|24:nsubj:xsubj	_
23	stopped	stop	VERB	VBD	Mood=Ind|Number=Sing|Person=1|Tense=Past|VerbForm=Fin	2	parataxis	2:parataxis	_
24	growing	grow	VERB	VBG	VerbForm=Ger	23	xcomp	23:xcomp	_
25	when	when	ADV	WRB	PronType=Int	27	advmod	27:advmod	_
26	I	I	PRON	PRP	Case=Nom|Number=Sing|Person=1|PronType=Prs	27	nsubj	27:nsubj	_
27	hit	hit	VERB	VBP	Mood=Ind|Number=Sing|Person=1|Tense=Pres|VerbForm=Fin	23	advcl	23:advcl:when	_
28	5	5	NUM	CD	NumForm=Digit|NumType=Card	29	nummod	29:nummod	SpaceAfter=No
29	'	'	NOUN	NNS	Number=Plur	27	obj	27:obj	SpaceAfter=No
30	11	11	NUM	CD	NumForm=Digit|NumType=Card	31	nummod	31:nummod	SpaceAfter=No
31	"	"	NOUN	NNS	Number=Plur	29	compound	29:compound	_
32	but	but	CCONJ	CC	_	40	cc	40:cc	_
33	my	my	PRON	PRP$	Case=Gen|Number=Sing|Person=1|Poss=Yes|PronType=Prs	34	nmod:poss	34:nmod:poss	_
34	horse	horse	NOUN	NN	Number=Sing	40	nsubj	40:nsubj	_
35	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	40	cop	40:cop	_
36	about	about	ADV	IN	_	37	advmod	37:advmod	_
37	16.2	16.2	NUM	CD	NumForm=Digit|NumType=Card	40	nummod	40:nummod	_
38	or	or	CCONJ	CC	_	39	cc	39:cc	_
39	16.3	16.3	NUM	CD	NumForm=Digit|NumType=Card	37	conj	37:conj:or|40:nummod	SpaceAfter=No
40	hh	hh	NOUN	NNS	Number=Plur	23	conj	23:conj:but	SpaceAfter=No
41	,	,	PUNCT	,	_	40	punct	40:punct	_
42	TB	TB	PROPN	NNP	Number=Sing	40	appos	40:appos	SpaceAfter=No
43	.	.	PUNCT	.	_	2	punct	2:punct	_
