in my opinion reading books, or even just dome short writing in Spanish can go a long way. Every time you come across a word you dont know look it up, or ask and write it down. Even try writing a sentence along with the definition of the word.
True, The sentence makes sense if your translating it to English Hope this helps
1. Primavera
2. Verano
3. Invierno
4. Otoño
5. Verano
6. Verano
7. Primavera
8. Invierno
9. Verano
10. Otoño